flattery will get you nowhere

It seems I was wrong on this occasion since I suggested a period later than it's apparently transpired.
Oddly I rarely use those images in Hajdamach - probably because I forget they're in the book - must make effort to try harder.
But I suppose had neither the op or anyone else seen that Richardson pattern book extract in Hajdamach, we might have gone on none the wiser, and continued to think it was later in the C19, although to be fair to Jeffingtons the correct 'early Victorian' date was suggested at the very beginning - perhaps the op is a genius.
Pontil depressions, everted rims and hollow stems are quite common in the Victorian period - perhaps it was Richardson who might have been the innovator of this appearance.
Shame about the damage - I'd ditch the oh and invest the money in more books

What the %/$*" was the glass doing sharing a sink with a heavy porcelain pestle?

When washing such precious items, put a liner in the sink - something like quarter or half inch thick soft matting sort of thingy - plastizote is ideal.
Yes, CH's book is marvelous - we refer to it all the time here, but "Bet you'll have hours of fun with that book" - what is it that I'm not doing with my copy cat

Are you saying you don't have a copy?

Anyway, all queries for early C19 clear drinking glasses now forwarded to the op for id.

But, tell us why Edwardian in particular Laird - not criticism - just curious.