The hub has a stamped in serial number 1739 (see close up)... Overall a very beautiful old airplane propeller... The item "ANTIQUE Vintage WWI Curtiss JN-4 Jenny Wooden Wood Airplane Propeller" is in sale since Monday, January 25, 2016. This item is in the category "Collectibles\Transportation\Aviation\Military Aircraft\Other Military Aircraft Items". The seller is "gypsiegirlz" and is located in Healdsburg, California. This item can be shipped worldwide.