This is an NOS rear bow weatherstrip for 1963-7 Corvette hardtop.
NOS weatherstrip in GM box - box is not sealed. rubber is flexible and completely functional.
group # 13.346
part # 3827481
NOS parts - have not been tested on a vehicle, and I will not warranty a 50 year old original GM part. NO returns on an NOS part that fails to function, is installed or used in any way.