GBD Models

[monbla256]

This is a pretty comprehensive listing of the GBD models. Hope it helps  

http://www.perardua.net/pipes/GBDlines.html

 

[Carlos]

Nice. Handy info as GBD's are often found in estate sales.

 

[riff raff]

Yep, I reference that site frequently. It is the best source of GBD model info out there. Jerry Hannah owns the site, but doesn't maintain it any longer. I started copying over the shape numbers he has on another page and adding new ones as I encounter them. Someone was supposed to write a GBD book, but that never transpired (Bill Unger?) GBD the brand and products is quite a tangled web, so a comprehensive book would most likely prove challenging to write.