Vintage Owen Brothers Sliding Clock Box circa 1950’s

This is a little difficult to find and this is a very early one. It is the die box effect with a clock.  The same sucker byplay and the clock vanished and re-appears on the hat of bag. These are the original instructions.  This was part of the Douglas Dean Collect who was the successor to Birch. In used but good condition.

Estimate $300-500