Old postcards. Any stamps I should look out for?

[A#1]

I don't collect stamps.

But I do collect old postcards.

Most of them seem to be from 1900 to 1940, but a few older or newer.

Just for the fun of it, I kinda wondered if there was any interesting stamps I should keep a watch for.

 

[Mackaydon]

Suggestion: Buy an old edition of Scotts (Stamp) Catalog (US Edition). Then concentrate on the 1C stamps since that will be on most of your postcards.
Match up the catalog pics with your postcard stamps; note the value of the stamp. Don....

 

[A#1]

Them things ain't exactly cheap, are they?

Hadn't even heard of it before.

Thanks

 

[Mackaydon]

If your concern is cost, you can take your postcards to the library and look them up in the library's copy of any US postage stamp catalog.
Don...