1930's-40's lighted beer signs

These are made of metal and glass and were popular in the 1930's and 40's. The Gillco (or Gil glass) domed signs are called "cab lights" as they resembled the lighted signs mounted on the roof of a taxicab. These signs were manufactured by companies like Artkraft,Lackner,Cincinatti,ArtKraftStrauss,Bildmore,Neon Products,Lumin-Art, Biolite, Bi-O-Lite,Crystal Manufacturing,Kirby Cogshall,Lakeside and others. I am always looking for these types of signs or even PARTS (bases,glass,etc) for them.