Antique Printer Block Aligning tool - holder

Description

Here is what I believe is a printer block holder for a printing press. I can read PATENTED  XXXXUSE & CO PRESS KNEE BACK before clamping. This is from a local collectors estate. This weighs 9.78 oz. This seems to work as it should . This will make  a nice addition to your collection. Please see pictures and ask questions. I will combine shipping.