We Seven - Mercury Astronauts

by Chris
(Houston, Texas)

I have a first edition copy of the book "We Seven" from 1962.

It is signed by the original Mercury astronauts (Cooper, Schirra, Glenn, Grissom, Carpenter, Shephard and Slayton).

A NASA employee gave it to my father in 1962 and the autographs are authentic.

Wonder what it is worth?