Butter Pat Cutters

This is the first butter pat cutter I've seen. After spending some time on-line I found two more examples, 

Vintage early 1900's to 1940's US Navy Butter Pat Slicer, Butter Pat Maker used by Commissarymen for the Wardroom Officer's Mess, stamped USN

http://www.thepirateslair.com/6-us-navy-butter-pat-slicer.html (owner listed it at $5500.00) 

 
and one that had two different slicers but not the 1/4 pound slicer for $135.00. http://www.sportingcollectibles.com/kitchenalia.html