This is the Tee shaped rubber, Sometimes used as door flap.  3/4" Flap.  If you need 1" Flap see item# S-10T Pre-war models as well as various other Coachbuilt models and some Phantom...

This is the Tee rubber that is sometimes used as door flap.  1" Flap  if you need 3/4" Flap see item# S-34T.   Sold Per Foot 1946-1965 Coachbuilt Models     ...