I wasn't suggesting that this was a piece of pressed glass, or that the lettering was made by a punch, just that it's possible to use a font to identify a maker.
I think what Tony was suggesting was that that particular stencil template, through which the letters were etched, might have belonged to one particular company. This could account for the lettering being identical.

Later: Looking at the two side by side, I'm not convinced the lettering is identical. Still, an interesting thought.