Royal Doulton (England) Bunnykins One Handle "Disturbing Father" Mug

A one-handled ceramic Bunnykins mug in the "Disturbing Father" pattern by Royal Doulton.  The mug measures 3 3/8" across and sits 2 3/4" high.  The bottom is marked "Bunnykins Regd. Trade Mark" which dates this piece somewhere in the 1959-1975 range.  The condition is very good.