AAMS Catalog 5th Edition
A friend of the American Air Mail Society scanned all six volumes of the AAMC 5th Edition. This edition has been sold out for about 15 years. New volumes are in progress and some new Volume 6 and 7 are now available from the website Resources/Publications page.
However as members of the AAMS you are invited to download this very useful collection of six volumes for your own presonal use. Note that Volume 5 had a cumulative index for all 5 volumes.
On this website click on Resources/Publications/AAMS Catalog 5th Edition