New Old Replacement Stock - NORS - Inner Distributor Cap, also called Distributor Terminal. 

Fits 1945, 1946, 1947, 1948 Flathead Ford V-8.  Sorensen part number FO-97, like Ford 59A-12106

Made by Sorensen in Woodside N.Y. and complete with original box and original scrap of 1948 New York newspaper.