stuartbaker104
Posted July 11, 2013 - 4:17pm
JP
The crystal opening in mm is 22.9 x 11.9 (narrowing to 6.8) - appears to match G-S T186 according to the 1930's GS catalogue on here. I had a look round a few UK suppliers and web sites last night and couldn't find anything. If anyone knows where I can get hold of one, then please let me know.
Thanks
Stuart