16 is a quarter stack (or a stack of for example signs) and 32 is half a stack. Your picture broke again.
Wow! 16325 probably also refers to the amount of Euros that set costs... Although.... That's not that bad of a price! This number also has a similar set.
Yeah, they're very cheap. I suppose painting is the most expensive task! Although I assume it has been automated somehow?... I've been coming across Schleich dogs lately, but they never have the number. I wanted to include one of them, though.
I believe people actually manually paint these to their liking.... I'd be way too lazy for that. This image says "Art 16330", and even has a Cyrillic link! I tried to copy it into here but it seems to change to some weird thing.... interesting. If you hover your mouse above the link or click it it does show the Cyrillic. http://xn--26-6kcu7a0arsx.xn--p1ai/wp-content/uploads/2016/02/16330.jpg
Huh, that's interesting! XenForo can't show it correctly, but the link still works. Have another Hello Kitty plane, while they last.