David A. Goldfarb
Moderator
I have a flange marked "Betax 4" by the previous owner that I received with some other items, and it's a little bigger than an Ilex #4 flange, so it probably is in fact a Betax #4 flange. If anyone can use it, you can have it for the price of flat-rate shipping--$5 US, $11 Canada/Mexico, $13 other countries.