BRAND NEW Zenza Bronica 2X Tele-Converter S for Zenzanon-S 80mm - 250mm and similar lenses. The box says up to 500mm, but I've never seen a Bronica 500mm lens.
This converter is compatible with the Bronica SQ/SQ-A/SQ-Ai system.
Bronica Zenzanon 2X Tele-Converter S for Bronica 6 x 6 medium format system
Bronica front and rear caps
Bronica instruction book
Bronica box and interior packing
$225 + $10 shipping