Ok, went through some bottles and found these..... ABC bottle on the far right, with its lip code G1 or GI. [attachment=ABC.JPG] [attachment=ABC, clear, front.JPG]
Bolton Club with GJ. Don't know why the bottle is coming out sideways, its upright on my computer. [attachment=Bolton.JPG][attachment=Bolton Club c, front.JPG]
[attachment=Pep Up.JPG] [attachment=Pep-Up c, front.JPG] And an older Pep Up version with "Lithiated" on the label. Its the bottle on the left. Lip has the single J. Don't know why these bottles are posting sideways.... Rick
Thank you very much Rick. The pictures are very clear and you have some nice bottles. Since I'm only vaguely familiar with those bottles does the date scheme that we are advocating make sense for your bottles? In your case GI 1937, GJ 1938 and J 1938.
carling / Rick I too want to thank you for the great pictures. Even though I said I signed off from this thread, it would be inappropriate of me not to acknowledge my appreciation in what I consider to be a major contribution. While I'm here I'd like to add that I have been looking at some bottles too (and not just Glenshaw bottles but bottles by various manufacturers) and discovered with every one I examined that when the letter I is used, the I never has the horizontal cross-bars but is always embossed with what looks like a lower case l For example ... [ Attachments ] 1. This is the GI from the lip of the ABC bottle2. This is the word REGISTERED from the heel of the Bolton Club bottle. Notice that the I in the GI part of the word REGISTERED does not have the cross bars3. Cropped GI in the word REGISTERED Footnote: Everyone can check their own bottles, but I can tell you already the majority if not all of them that use the letter I in any manner will not have the cross bars. I have not found a single one yet. And while you're at it, check out any bottle that has a number one on it and don't be surprised if they look like this ... 1 In other words, mold makers had the ability to make a 1 just as easily as a capital I but for some reason always made the I look like a lower case L such as this ... l
P.S. As to blowing my mind and me freaking out if a GG is found ... Heck, I'll do back flips even if a solo G is found (Other than on the late 1920s and early 1930s bottles) I haven't seen a 1932 or later solo G yet and starting to wonder if they even exist. Maybe, just maybe they actually started with the GH for 1936 ???
P.S. ~ P.S. I grabbed this example at random because I own the bottle and because it has all of the key letters. Notice ... 1. The capital I in Clinton which is a l 2. The G and the 1's in G16183. The solo 1 under the Owens-Illinois symbol Hence, mold makers had the ability to use a l for a capital L as well as a 1 at the same time! Note: I realize this is an Owens-Illinois bottle and not a Glenshaw bottle, but it appears that all of the glass manufactures used this same format.