"Rare Ancient Firearms" by Dexter is a limited edition, signed and numbered. #1162 of 2000 printed and sold by subscription only in 1954. The plates which were made to print the book were destroyed so no other printings could take place. It is a shame the dust jacket is basically destroyed. Still a very nice reference book.

"The Evolution of Weapons and Warfare" By Colonel T.N. Dupuy, U.S. Army, Ret. This book appears unread and is in great shape. A tear in the dust jacket and a tiny scuff on the bottom of the back cover are the only deductions. 

Both books are full of information you didn't know you needed until now.