Mickey Mouse brooch pin retailer 1935 enamel brass signed Walt Disney 1930s

From one of my jewelry estate buys an original vintage enamel and brass Mickey Mouse brooch pin. The brooch was attached to a paper note which stated the individual's father had bought them the pin in 1935.
From my research all other Mickey Mouse pins of this style I've seen are from the mid 1930's which makes 1935 accurate.
The back of the pin has the letters WD

Pin is in nice condition and the colours are still vibrant.
Enamel does have some chips, top right ear, left leg and left arm. Some tarnish to brass on the backside.
The last photo shows a closeup but some chips are very hard to see in black enamel. Pin and hinge are in good working order.
Please examine photos carefully.

Measures approximately 1 1/4 inches ( 32 mm ) tall by 1 inch ( 26 mm ) wide.

Thank you for looking Gerry retailer