could be wrong, but the two marks don't look that similar...................admittedly this most recent pic lacks some definition, but there appear sufficient differences to need a 'second opinion'

- can this second pic be sharpened up possibly?
I'd agree with the comments regarding the quality etc. of earlier pressed tumblers, although genuine crizzling may not be that common in tumblers.
We don't know size of this later piece, but it looks more like a tumbler than a shot glass.
