Butterfly Brand metal adhesive tape dispensers x 4, c.1930s-50s

A collection of four metal "Butterfly Brand" adhesive tape dispensers, c.1930s-50s, the largest measuring approximately 4.7cm (1.85in) long.  All retain at least some of the original adhesive tape, although this will have lost its stickiness by now.  The largest dispenser, printed in blue with black sticky tape, is heavily tarnished with slight rusting; two of the smaller dispensers are somewhat rusty and bent slightly out of shape, although the other smaller dispenser is in very good condition for its age, and has only slight tarnishing.