I know that some zoo enthusiasts collect the classic, 1960s-era Mold-A-Rama zoo animals and here is a great article (December 2019) with a lot of details about the machines...with a focus on Minnesota. https://www.startribune.com/where-t...achine-in-minnesota/565852582/?refresh=true#9
Hmph. Link tells me I've read my limit of articles. As I've never linked to this source before, I think there is a fault with it.
I just accessed the link again with no issues at all. Oh well, there are several other Mold-A-Rama articles available online if this one doesn't open for you.