Polishing the lenses would have been hand done, I'm sure, but the pontil mark (also hand worked) has only been roughly ground. A good quality thing is far more likely to have had the pontil mark properly polished all shiney bright. (I'm glad I only had to type that. I'd have trouble saying it!)
(Getting away from my areas of comfort again - I like studio glass - hot worked stuff. I'm not nearly so much into any sort of cold working on
Paul, your thing looks like a tiny tumbler.
I would not even wish
to hazard a guess about what masons might do with anything.
My geography teacher told us all about the picture of a huge triangular eye she was scared of in a toilet.
It had the words; "God thou see-est always." written underneath. Why "God" would wish to watch somebody in the loo is beyond me. I'm sure that was something masonic!