Victorian Collapsible Travel Cup

This came with the other one we recently sold...both were given to me by a 95 year old Gentleman and originally were his Father's....they date to the late 1800's.The case is a compacted cardboard and the cup itself is Pewter. The case measures 2 3/4" in diameter and is 1 3/8" in height. The cup when 'pulled-out' stands 3 1/2" tall with a diameter at the lip of 2 1/2"