hi - are we being a tad wishful in our thinking

……………. the scale cutting, relief diamonds, polished pontil depression, air stem and bladed knop don't on their own tell us this originated c. 1850 - or even earlier. All of these features have been copied many times in the later C19 and C20 - Walsh I seem to recall used most of these on some of their drinking glasses - in particular scale cutting I believe.
Please tell us what in particular suggests to you this is 170 years or more in age? - is it a combination of some or all of the above features?
Other characteristics such as ...………. wear, colour of glass, size of foot, seeds possibly, and a v.g. lead glass ring, are more likely help - we've said recently that so many of the earlier features have been copied on later glasses, which makes for confusion, though it doesn't automatically rule out a big age for your glass, but we need to go through all the hoops before reaching a conclusion.
You don't mention wear - so waiting to hear more news on this point.
As to origin, you may be correct, but I think it's probably impossible to say for sure unless someone recognizes this particular pattern. I think the best bit about this one is the cost free aspect.
