APPLE I CM2140N / 2513,  Character Generator ROM. 1978 Date code. NOS, working, unused from factory tube .  These are from my own stock of parts here in the USA.  We do not sell Chinese counterfeits.  These are used in Apple I and some Apple II's and other homebrew computers at the dawn of the personal computer age in the 1970's. This is what you need if you are building up a Apple I reproduction computer and want it to be date code and part correct.