I'm modifying all my cameras to take a customized Linhof compendium/filter holder. Would someone be able to take a picture, with measurements, of the rod that fits into the top of a 110 format frame (and is consequently locked by the spring-loaded knob)? I'd like to recreate the lower part of the rod, with a customized top to take a Linhof accessory shoe.

If Photomark was still an Arca stockist , I'd just drive down there.