On old old film:
I got four rolls of unboxed film that are marked not only as Verichrome and 120, but also as "2-Brownie." So far my research hasn't been able to figure out when this film was made. Going on the backing paper, I'm thinking 1940s. Maybe even the 30s. Verichrome was made from 31-56. According to another site, it said that the 2-film designation was done before they started using the 120 number, but they were using the 120 number long before Verichrome came along.
Let's face it, I'm too tired right now to deal with this. I'll dive into it another time. If I figure out what's going on, I'll let you know (I'm sure you'll be on your tippy toes waiting...).