Israel Lira1958 km# 22  Schön# 18 Proof* and UNC (2 coins)

Without a mintmark on either version, it is extremely difficult to make any distinction between a BU and Proof coin. The Proof version should theoretically have a more glossy surface than the BU coin, and have a blue-gray hue. The BU coin's appearance should be more yellowish. Also, the raised inscriptions on the Proof coin should have a frosted appearance, as against dull matte on the BU coin. According to several sources both Proof and BU coins were struck from the same dies. The first coins coming off the press would have a distinct glossy surface, frosted raised inscriptions and a high relief. These coins were then offered for sale by the IGCMC as Proofs. When the die started showing signs of wear, the surface gloss started to diminish, and the frosted appearance of the raised parts slowly started to take on a dull matte look, all further coins minted with the same die would be marketed as BU's.