Hey folks I have a anvil that I am trying to find out the age of. The top is 3 1/2" X 13", and on the right side there is a diamond with "trenton" in the middle. Above the diamond is some letters but I can only make out, S........O.." Below that is stamped "USA", and below that is "91". On the bottom of the base under the horn say "T" on the left and "A804" on the right side.
If you guys have any ideas of how old this anvil is and the weight I sure would appreciate the info!:D

Here are some pics ....

thats a nice looking anvil you have there.the more you use it the better it will look.try going over it with a wire brush,then wipe it down with a bit of oil,itll make a difference.happy hammering.

Most of the Trentons were made in Columbus OH and are stamped in pounds so that would be 91# (unless there is a hidden 1 before it). My copy of Anvils in America is at home but I will try to remember to look up that serial number tonight.

I have used a 91 pound Arm and Hammer anvil---also made in Columbus OH---for my primary demo/travel anvil for about 25 years now and have been very happy.

Thank you so much for the info! 91# seems right as I don't bust my gut when I lift it. If you could find out the date on it that would be fantastic!

according to Richard Postman's research in Anvils in America, your Trenton anvil was made in 1898, He lists serial numbers made in 1898 as Numbers 0-4000. Nice looking anvil.