I have a question about a strange item that I recently found at a flea market. The item consists of a wooden box with 17 Atari 2600 game cards (they all work on the Atari 2600). The wooden box has little slots cut into the sides to allow the cards to slide into place for storage. The chip boards/cards are very strange and do not look like any chip boards that I have ever seen before. Usually the chip boards that are inside a standard game cart which were released for sale by Atari are small, usually have a green coating, and do not have the two additional prongs on either side of the card. All of the games have been tested and each of the games does in fact work and operate on an Atari 2600. The game Stampede has the Activision logo at the bottom of the screen when played. The Stampede game seems to freeze up during gameplay however the other games seem ok when playing them. The game titles are as follows: Stampede, Space Jockey, Maze Craze, Canyon Bomber, Flag Capture, Golf, Casino, Hangman, Night Driver, Circus, Missile Command, Adventure, Haunted House, Slot Racer, Space War, Warlords, and Star ship.
My question is what exactly are these things? Are they prototypes of the original games? Are they strange copies of the games? Are they bootleg or pirated games? How can I tell a prototype game card from a copy or bootleg card? Do these games have any value? Is it common to find these cards in a wooden carrying box like this one? I appreciate your feedback on this issue. Thanks!