Signature, with Notes, dated December 16, 1987. SIGNED BY CLYDE W. TOMBAUGH.

2 leaves. Very Good. Two photocopies of (1) pp. 126/127 and (2) 128/129 from the book by Tombaugh and Patrick Moore, "Out of Darkness. The Planet Pluto" (1980). Tombaugh signed and dated his name in the blank margin at the bottom of p. 126. He wrote Notes in the top margins of pp. 126 and 127, with arrows in the side margins. He also wrote Notes on pp. 128 and 129, with arrows in the side margins. Since in January 2025 there are on the market at least four other photocopies signed by Tombaugh involving pp. 126-127 or pp. 128-129 (priced from $115-$375), it is certainly possible he did this many other times. But in addition to these signed photocopies, there are currently on the market many signed Tombaugh items relating to his discovery of Pluto. He was a prolific signer. There is an irony here because Pluto is no longer the ninth planet of our solar system. In 2006 Pluto was designated a "dwarf planet". Pluto is a real object in space, so Tombaugh did discover something real. But Pluto no longer being a planet in our solar system, what will the importance, and name recognition, of Tombaugh's discovery be in the distant future? --As of January 2025, my listing is the only offer of photocopies of all four pages and is the lowest price by a lot.