A set of 4 different pencils with a photo of each Beatle with his name date of birth and a description of the instrument played printed on each. The eraser mesures 2 1/2" wide by 1 1/8" high and depicts a head shot of each Beatle. The original has all four Beatles on one pencil; the reproductions have one Bealte on each pencil.

Source: The Beatles Memorabilia Price Guide 3^rd edition