Vintage Treasures of King Tut chief deity of the desert Hathor letter opener

Description

Reproduction made from a cast of the original found in King Tut's tomb, for the 1976 Metropolitan Museum of Modern Art's Treasures of Tutankamun exhibition. Stamped on the back "MMA 1975".
Never been used, but box has been opened: still in it's original box with background paperwork.
Length:  7 inches
Width:    1 1/8 inches
Depth:    3/8 inches
Estate of my grandmother (1916-2018)