Birmingham Silver teaset - makers mark help request

[HAC]

Just picked up a very nice silver teaset..

http://members.shaw.ca/flasharry/images ... lver_1.jpg" onclick="window.open(this.href);return false;

I figured out Birmingham and the date, however, I have no knowledge on makers marks.. Can anyone identify this one?

http://members.shaw.ca/flasharry/images ... llmark.jpg" onclick="window.open(this.href);return false;
(admin edit - images too large)
Any and all info would be gratly appreciated
Cheers
Harold

[Margaux]

CSG & Co are the hallmarks for: Charles S. Green & Co
Birmingham 1929

[HAC]

Inof was greatly appreciated. I can start some more research now. Would you know any more, or could you recommend soem materail on Charles S Green?
Cheers
Harold