I've searched the internet quite a bit, but have not found a definitive answer, so forgive me if this is rehashing.

1) How many 1895s were made?
2) Did Savage produce any of them, or were they all manufactured by Marlin?

I've seen pics of Callahan letters that said "“An arrangement was made by the Savage Company to have John Marlin produce the first firearms in his factory as Savage did not have the plant or equipment at the time to do this. The first 8200 rifles were produced by Marlin and are stamped with a “JM” or “M” marking under the barrel.”

... and I read a post by Calhoun that said the 1895 production was from 3000-8200ish

Taking those two comments together would imply that all the 1895s were made by Marlin and there were about 5200 of them.