Offered here is an extremely RARE early MACHINE LANGUAGE UTILITY cartridge that was issued in Japan to be used with the VIC 1001 computer (an early version of the VIC 20). Super rare cartridge with original VIC 1001 Japanese box. Cartridge and box are in excellent used condition. In fact the cartridge appears UNUSED! Very tough to find; even in Japan. TESTED and working but sold as is, parts or repair as I do not warranty electronics over 30 years old. I ship worldwide. Please check out my other listings. Buyer pays shipping. Good Luck!