Lot of six ink and felt tip signatures: “Herbert Hoover,” on a 1961 speech pamphlet; “Harry S. Truman,” on two different engraved cards of thanks, one dated 1-2-68; “Richard Nixon,” on a printed invitation to a 1969 Nixon-related event in New Jersey; “Gerald Ford,” on a color engraving of the Great Seal of the United States; and “George Bush,” on an FDC honoring the 1981 inauguration. In fine, attractive condition overall, with occasional toning or mild soiling. LOA John Reznikoff/PSA/DNA and R&R COA.