The Egyptian Magic Coin has been manufactured in various places since as far back as 1905.
Some were sold as independent medallions and some were attached to watch fobs.

Gold colored bronze, 32 mm, 8.35 gm
Obverse: Pharaoh seated on throne surrounded by hieroglyphs
Reverse: Sphinx with pyramids and sunburst behind

Egyptian Magic Coins are coins with Egyptian symbols which have been made since 1905. They were originally part of watch fobs but were then manufactured as independent items. The standard Egyptian Magic Coin has an Egyptian Pharaoh, a Sphinx, and Pyramids. The obverse side displays the Pharaoh and the reverse side displays the Sphinx and Pyramids. The obverse has an Egyptian Pharaoh seated on a throne supported by cats, surrounded by various Hieroglyph symbols including a pair of fish, a man seated, and a jar. The reverse has an Egyptian Sphinx facing left, behind the Sphinx are four Pyramids and a sunburst. Below the Sphinx are Hieroglyph symbols including a bird, three dots, and an Ankh symbol (☥). The pyramids become larger from left to right. They have appeared for years on Internet coin collector and metal detector boards, on Ebay, at coin shows, and even in motion pictures. One made it into a major Hollywood motion picture, the 1946 film "Duel in the Sun." Walter Huston gives one to Jennifer Jones to protect her from "sinning" with Gregory Peck.

The creator and designer of these items or the base watch fob is unknown.
Searches for trademark or patent registrations have turned up nothing.
They would fall into the category of "good luck coins", "magic coins" or "magician's coins." The standard size is 32 mm and they are usually made of brass or bronze.
There are four main types of these items and several varieties.
There are some varieties which incorporate a standard obverse or reverse with the other side having a completely different design. Some have traces of white plating or paint.
Some are plain round coins, some have loops for wearing them as jewelry or amulets.
Sometimes loops have been removed to create a "coin."
Many are found very worn and possibly they were kept as pocket pieces.

The design may have been inspired by the "Egyptian Revival" fad of the late 1800's, which saw ancient Egyptian designs being worked into architecture and art. The design might also be based on an ancient Egyptian "HypoCephalus", a small linen or papyrus disc placed on the head of a mummy body before interment. These items are round and have Egyptian hieroglyphs and symbols on them. Egyptian Magic Coins have been around since at least 1905, when a listing for one appeared in the 1905 Sears & Roebuck mail-order catalog as part of a watch fob.

The 1922 discovery of the tomb of the Pharaoh Tutankhamun or "King Tut" created another wave of "Egyptian Revival" items, including more of these coins. Some were sold by traveling carnivals and circuses as good luck coins. Some were handed out by stage magicians, hence the description "Magic Coins." Some were sold at the Chicago Century of Progress World's Fair of 1933-1934, and at other large events. Some tourists in Egypt have reported seeing these items for sale in the bazaars.

These items usually do not have any inscriptions, text, or logos on them. This makes them hard to identify by people who have found them in collections, estates, or with metal detectors. They frequently appear on Internet coin collector or metal detector forums, usually by people asking "what is this?" or to identify something found as an "Ancient Egyptian Coin", "Aztec Coin" "Mayan Coin", or something similar. They have all kinds of names, including "Egyptian Challenge Coin","King Tut Challenge Coin", "Tutankhamun Challenge Coin", or "Visit to Pyramids Souvenir." Some have been sold as "Coins of Joseph", the Biblical character from Genesis who was sold by his brothers and later became an Egyptian official. Metal detectors have found them in almost every state in the United States, and all over the world including Great Britain, Ireland, Canada, Australia, South Africa, Germany, France, Poland, Portugal, Switzerland, the Czech Republic, Uruguay, and, yes, Egypt. Egypt's King Farouk, a notorious coin collector, may have owned one.

Egyptian Magic Coins are not worth very much, they have sold on Ebay for prices ranging $1.00 to $100.00, the price depending on condition and if the coin has an unusual design, an inscription, or advertising.

There are four main types of these items and the first type (Type 1) is the most common.

The item appeared in the 1905 Sears & Roebuck Catalog Spring and Fall editions, also in 1906 and 1907. The 1905 listing did not show the medallion's other side.

By 1907 the listing had a smaller size and the price had been reduced.
This listing shows the other side of the watch fob.

Sears Catalog 1907 listing with text similar to the 1905 listing. Sears & Roebuck watch fob:

Bronze, silver plated, 6 inches (15 cm), 34.45 gm (total), 23.39 gm (fob only)
This one has seen some use:

Bronze, silver plated, 32 mm, 11.05 gm, Type 1

An Egyptian Magic Coin appears in the 1946 David Selznick film "Duel in the Sun", a Western film set in the 1880's at a large southwestern cattle ranch. This was a major Hollywood motion picture, sometimes called the "Gone with the Wind" of Westerns, as both films were produced by Selznick International Pictures. The film starred Joseph Cotten and Gregory Peck as good and bad brothers, Jennifer Jones as a sexy "half-breed" girl, and Walter Huston as a travelling preacher known as the "Sin Killer." At one point Walter Huston gives Jennifer Jones a religious medallion with the idea that it will keep her "pure." It doesn't work. The medallion is a standard Egyptian Magic Coin, Type 3, and is heavily worn.

The medal is shown with views of both sides.

The film medal with the obverse and reverse edited together.
For more information, please visit: Coins in Movies - Duel in the Sun

Silvered brass, 32 mm, 11.04 gm
These medallions were manufactured in 1948 and 1949 as a promotion for the radio program
"The Romance of Helen Trent" which ran from 1933 to 1960.
This medallion uses the same symbols as a standard magic coin but the figures are more cartoonish.
For more information, please visit: Coins in Movies - Duel in the Sun

Bronze, 32 mm, 13.13 gm, Type 1
This item is a standard Type 1 with the addition of a Swastika and initials on the reverse.
There is also a logo with the initials "FEK" or "PEK", this may be a manufacturer.
The origin of this variety is unknown, as is the reason for the swastika.

Bronze, 32 mm, 9.74 gm, Obverse Type 1
This one has a loop for wearing it as jewelry or an amulet
The Central Electric Company of Chicago sold electrical supplies.
The Okonite Company was one of the first US makers of insulated electrical wire and cable.
Early customers included Thomas Edison and Samuel Morse.

Bronze, 33 mm, 9.42 gm, Reverse Type 1
The obverse has an obelisk and several small sphinxes in two rows leading to a temple.
The reverse has the same sphinx and pyramids reverse as a standard magic coin.
This one came from France and was possibly made there.

White metal, 32 mm, 10.50 gm, Reverse Type 1
Obverse: Cleopatra facing right wearing bird headdress and to right, a small bird also facing right.
Reverse: The Egyptian Magic Coin sphinx-pyramids design.
Origin unknown.

Bronze, 32 mm, 9.87 gm, Type 1

Bronze, gold plated, 32 mm, 8.64 gm, Type 1
Someone took an ordinary Egyptian Magic Coin and gold plated it.

Zinc, 32 mm, 7.11 gm, Type 1, lots of corrosion
A new low, an Egyptian Magic Coin made from zinc.

Bronze, 32 mm, 10.02 gm, Type 1, painted
In this one, the Pharaoh side is colored blue and the Sphinx side is turquoise, red, and white.
These items are usually hand-painted and come in various colors.
The popular musical group "The Grateful Dead" performed in Egypt a few times,
and these items have occasionally been marketed as mementos of the performances.

This is an alternate variety, with the common elements but smaller in size and with a different design.

White metal, 26 mm, 4.30 gm
This example is similar to the standard magic coins but is smaller.
It is plated with white metal, possibly silver.
The design is not quite the same as the standard magic coin.
The Pharaoh is facing but is seated on a mat, not a throne.
The Sphinx is facing right, on standard coins it faces left.
The pyramids get larger from right to left, standard coins are left to right.
It may have been manufactured in Britain or in a British Commonwealth country.

A British example of the Type 4 design.

Bronze, silver plated, 32 mm, 9.49 gm, Type 4
This one has a slightly altered design from the regular version.
It came from Great Britain may have been manufactured there.

Bronze, 32 mm, 12.15 gm, Type 4
This one had a coin glued or soldered onto one side (Why?).
The attachment was not very good and the coins were able to be separated.
The weight with the attached coin is 17.91 gm.
The coin is a British Straits Settlements five cent coin dated 1919.
The Straits Settlements became British Malaya and later independent as the Federation of Malaysia.
It is possible that the work was done there.

This glass button with the Egyptian Magic Coin Sphinx design was supposedly made in Czechoslovakia.

Colored glass, 32 mm, 5.62 gm, Reverse Type 1
Yellow glass, one side has Egyptian Magic Coin Sphinx design and other side is blank.

This ornate pin is made from an Egyptian Magic Coin with crescents attached.

Bronze, 2-3/4 x 1-5/8 inches (7.0 x 4.2 cm), 29.26 gm, Type 1
It looks like it is a one-of-a-kind item, possibly made from a metal belt buckle.
Origin unknown but possibly somewhere in the Middle East or Egypt.

This is an alternate variety, with the common elements but with a different design. This one arrived from Australia and may have been manufactured there or in Great Britain. I have a similar one (not shown here) which came from Great Britain.

Bronze, silver plated, 5 inches (12.7 cm), 23.28 gm (total), 14.97 gm (fob only)

Bronze, silver plated, 32 mm, 8.31 gm
This one has a different image style than the standard magic coins.
The Pharaoh is facing left and the Sphinx is facing right.

The famous Tarot Cards used in fortune telling have images similar to the Egyptian Magic Coin.

The coin design may come from the same source as the Rider-Waite Tarot Cards,
published in 1909 by William Rider, Arthur Edward Waite, and artist Pamela Colman Smith.
The first card with the Emperor seated is certainly similar to the Egyptian Magic Coin Pharaoh.
The chariot card also has similarities.

This item appears to be related to the Egyptian Magic Coin.
It also has Egyptian hieroglyphs and no inscription.

There is more about this item here: Egyptian Oval Coin