Yes it can be done. Use a customs declaration form CN22 or CN23. On the far right next to Item Description there is a box for a Tariff code. Use the code 9705.00.70
Make sure and put "Original WWII Flight Jacket" in the description box and declare full value. Now you can insure it for full value without import fees.
H tariff Code: 9705.00.70 - Archaeological, historical, or ethnographic pieces "Collections and collectors' pieces of zoological, botanical, mineralogical, anatomical,...
Legally avoiding import taxes for WWII Jackets
Make sure and put "Original WWII Flight Jacket" in the description box and declare full value. Now you can insure it for full value without import fees.
H tariff Code: 9705.00.70 - Archaeological, historical, or ethnographic pieces "Collections and collectors' pieces of zoological, botanical, mineralogical, anatomical,...
Legally avoiding import taxes for WWII Jackets