Cambridge Glass Company                Cambridge, Ohio                                            C.G.C.
Other Glass Factory Marks
I believe that all single letter marks are only mold marks and not attributable to any particular glass co.
Nothing or single letters ?
Dose Cup Types
Dose Cup Dating
Dose Cup Lettering
ACL Product Glasses
Product Dose Cups
Footed Dose Cups
Dose Cup Maker Historys
Etched Glass Styles