I agree with jrkirk, its good to be skeptical about everything. Yet, that signature is of the era. Bet my Tiffany on it. There's a flow and "ease" of writing that, when it differs significantly from current-day hand styles, is nearly impossible to fake with conviction.
**on written forgeries**
When trying to mimic a writing style not your own, (without a lot of practice,) the result nearly always comes out...halting, stilted, too concerned with getting it era appropriate, or if its a true forgery, getting it to look like the artist's (or account holder's) writing style to be the casual scrawl of one comfortable in their hand. I don't know if I'm making sense, but there's a distinct lack of spontaneity and freedom in it. If you're familiar with forged signatures, you just can see it so clearly, even when you're not familiar with the style they were trying to copy. It's just..."wrong" looking.
***
The chutzpah of forging a line of that size just commands its own kind of respect, right?
The archaic letter styles, flowing hand, and 178pt font (hahaa!) used are, when combined, very UNlikely to be a fake/forgery.
I've never come across a piece of glass marked like this before and I'm very glad to have seen it!! Thanks for sharing.
