Proof 1960, 4c, 8c United Nations Fifteenth Anniversary, die proofs (83P, 84P), two stamp size die proofs, mounted on linen card, also 8c progressive proof, 4c proof in an unadopted design similar to the issued, and two proofs for the selvage U.N. logo, all in black; backing annotated with die numbers, the progressive and unadopted designs marked "NOT USED"; very fine