Well 32 are clearly documented in my registry.
Another 4 are listed on the registry page, as most likely to exist, but since I don’t have good enough information to eliminate them as duplicates, I have them listed as probable.
I have less concrete information on 4 or 5 more. Some of these may be listed soon, as the owners are planning on providing more details to me in the near future.
That puts my count of probable units at around 40. Keep in mind that I’ve only been investigating this for about a year and a half.
How many more are in private hands? That is anyone’s guess, but I’m sure that a number of owners don’t want to publish the fact that they own a collectible computer that could be worth as much as $200,000.
It wouldn’t surprise me if the number of undiscovered units was as high as 20 or 30. That means the previous estimates of under 50 remaining Apple 1’s is probably low and the actual number could be as high as 60 or 70, perhaps even more.
On the other hand, maybe everyone who has an Apple 1 has had something published on the web about it and there are only 40 left. What do you think?