Try the following subject areas (site links):
Sample Page from My Book-In-Progress on the postal history of the First World War in the United States. [77K PDF]
More about my WWI research...
Listing of known early and late dates of usage for American flag cancelling machines at military facilities in the U. S. [19K PDF]. This list appears in the latest issue of the journal of The Machine Cancel Society.
Jewish Welfare Board Ship Postcards
Mystery Covers (at least I can't figure them out!)
Mysteries Solved due to the generous assistance to people like you!
My Postal History collecting interests
Images of Advertisements from Covers, Postcards, and, yes Stamps
Ok, Ok, I collect some stamps, too.
To enhance your enjoyment of the hobby, join an organization, whether it is general or for the specialist.
A highly selective list of LINKS for Stamp/Cover collecting
Currently the Society is composed of four study groups, namely:
- The Air Crash Study Group,
- The Railroad Wreck Study Group,
- The Ship Wreck Study Group,
- and The Suspended Mail/Conflicts Study Group.
And last - but not least:
USPS Zip Code Look Up