Help Me With These Eary Embossed Dies Please

Hi Guys. I am having trouble to find out how to identify these dies online. If anyone has links to share with me that would be great.

The 2 pink 3 cents dies are different, as can be seen in the lettering.
Can anyone tell me what they may be?


The next two are very early as one is dated Mar. 4. 1857 - from the little info I could find online I think this might be a die 5?? The other seems to be a die 1 (13mm spacing at top)

try this identification wizard http://dubinweb.com/USstampedenvelopes/0.03.html

Thank you. Great link :)

There are many different working dies for these two Nesbitt issues. The United Postal Stationery Society "Catalog of 19th Century Stamped Envelopes, Lettersheets and Wrappers of the United States" help to identify all the varieties