Sorry for the delay, but here are four views of the clamp that I found years ago from a vendor of parts salvaged from used S-P product - images I had previously posted a the AACA PAckard DF.
I believe these clamps meet the specifications outlined by Randy in a recent post. Also, in one of the photos, you can just make out the name "WITTEK".
Attach file:
(34.25 KB)
(35.00 KB)
(20.91 KB)
(29.19 KB)
This Post was from: https://packardinfo.com/xoops/html/modules/newbb/viewtopic.php?post_id=15081