3 Marilyn Monroe Movie Star Buttons

BUTTONS OR PINBACKS, a set of 3 all with Marilyn Monroe. There is a 1 1/2 inch with "Gentlemen Prefer Marilyn Monroe" and Marilyn, on the side is "Copyright MMNM 1956". The next is about 1 3/4 inches with Marilyn only on the side curl is "Design & TM Copyright 1993 Estate of Marilyn Monroe Repd by the Roger Richman Agency Inc. Beverly Hills, Ca Button Exchange Ltd Part of the O.S.P. Group Rochester MI 48307".  The final pinback is 1 inch and has "Marilyn Monroe Fan Club" on it and no writing on the curl. Marilyn Monroe was signed to a contract with 20th Century Fox at $125 per week for a six-month period and that was increased by $25 per week at the end of that time when her contract was lengthened.