This is a group of 30 pieces, 27 of which are pin-backs. Largest buttons in the group are 3.5”. The items which are not pins include JFK metal key fob and a plastic key fob. The third item is a circular double blade knife for Robert Kennedy. 12 of the items are for JFK and 11 are different with one duplicate. Seven of the items are for Robert Kennedy. Five items for Lyndon Johnson. One item for Humphrey. Four items for Nixon. The John Lennon is a 2-1/8” celluloid with the dates of his birth and death. Only one RFK button, the third from the left, has a couple tiny age dots. An extremely clean and in-depth collection of memorial items spanning JFK 1963 through Nixon 1994.