You may NEVER see this again as this is a "ONE of a KIND" offering. Offered here is the original beginning prototype card, initialprototype cartridge and final prototype cartridge of the VIC 20 IEEE cartridge. This has been in my personal collection for many years. I do not like to part with my prototypes but the time has come. The VIC IEEE cartridge is extremely rare to begin with but these are the initial prototype developmentcartridges that concluded with the production version. Cartridges are untested and should be regarded as Historical computing artifacts. Keep in mind the production cartridge usually sells for 2-250 when offered which is rarely. If you want something in your computer collection that no one else has or if you are a serious Commodore enthusiast, this is for you! I ship worldwide. Please check out my other listings. Buyer pays shipping. Good Luck!