Brass or Copper plate

[trooper424]

I dug this brass or copper plate (about 2x3 inches) on a farm in Connecticut. I originally thought it was just a plate but when I took it home and cleaned it up I noticed a rooster at the top. Using some side lighting I also saw a crown and below that a small shield (with small stars). You can’t see it in the pic but on the bottom (written backwards) is the phrase “Longhorn King Crown”. I’ve tried all combinations I can think of for a Google search but come up with nothing. I think it might possibly be a plate used in printing. I’m hoping someone might be able to tell me what this is. Thanks for taking the time to look and any information would be greatly appreciated.

 

[Roland58]

It appears to be a printing plate, although I could not find anything on it. The fact that there is backward printing (engraving) is what leads me to think it is a printing plate of some kind. Would it be possible to bring out any further details that would determine if everything is backward?

 

[all iron]

I would also agree that it is a copper engraving used to make a printing plate.