Wood C clamps

I have never seen clamps built in this fashion and I was eager to get my hands on this lost treasure.

Another garage sale item from the same gentleman who had the saw vise. Two assembly clamps made from beech wood. I believe the clamps are from Germany because of the stamped numbers on the handle end near the tenon corner. 18 and 21 are stamped respectively identifying the capacity of the jaw opening in centimeters. Actually the opening is more like 18.5 and 21.5 cm.

You may have noticed that the pads are missing from the wood screw. If the pads are roughly .5 cm then that would make the capacity exactly 18cm and 21 cm. This of course begs the question how were the pads attached and what shape did they take ?

Thread pitch of the screws are about 6 tpi.

Making reproductions of this clamp would be very fun and fairly straightforward.

Very old saw vise

Last weekend I went to some garage sales on a whim, hoping to find some old wood working tools.
One of the treasures I found was this oak saw vise. The gentleman who owned this antique explained that when he and his wife bought their house in Germany this tool along with others were inside.

The large wing nuts look rough cast which should help me date it.(I hope) The number 5 is stamped into the wing nut( I don't know how this is relevant). 5 could stand for a bolt diameter however, the bolt measures 10mm. One of the bolts has a "F" cast into the head.  I am guessing that this was made by a German woodworker.

The vise did see active service as evidenced by file marks going transverse on the top where the saw is clamped.  One of the clamping blocks has been hollowed along the length to allow a tight fit at the top where the saw blade sits.

Length : 12 11/16 "  (32 cm)     Width 2 7/16"  (  6 cm)    Height 4 3/16"  ( 10.5 cm)