The first edition of American Antiques has no letter code. Cover price is $1.00 with 160 pages. © Copyright 1967 by Western Publishing and Ridge Press, Inc. The number on the spine is 24013.
Shown below the softcover is one of the the two large hardcover versions of American Antiques. I have yet to find this cover variant in a softcover edition. No price listed. The number on the spine is 28105. The letters ABCD are on page 160. Contents are the same as the softcover.
Image #1 also exists in a large (5 ¼ by 7 ¾ inch) hardcover. The number on the back cover is 63537.
No revised edition exists. Out of print.