Topic: Pressed tumblers?

[bat20]

Hi all,I'm a sucker for these work horse type tumblers,I think the one on the left could be early 20th century and the one on the right older,they came together so forgive me for doing a single post. The one on the left has a very rough edge to the foot but I'm sure that's how it came out the mould and has bubbles small and large with a lot of black bits in the glass,the one on the right is 10 cm ht,any thoughts many thanks.

[bat20]

Sorry ,the one on the right has the rough base and more bits in the glass and the one on the left is 10cm ht.

[bat20]

Looks like I'm in a very small minority who like the aesthetic of this type of glass,anyone know of any book that might cover such tumblers?