Vintage 1946 1947 California motorcycle Or Delivery license plate Santa Monica

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This is what I believe to be motorcycle license plate which is in excellent condition.  it measures 6 inches across and 3 3/4 inches wide. It has minimal rust damage for its age the back is in very good condition. The white lettering is also in good condition. The back of that ground is green with white lettering. This may be a bicycle plate or perhaps I was told it could"ve been used for businesses that used vehicles to make deliveries. This one would"ve been for Santa Monica. 
If you have any questions please ask prior to bidding. Thank you for your interest.

Sale Price: US $199.99