Nice Belt Plate?

[GreenMtBoy]

Hi all. I came across this nice looking belt plate. I am wondering if anyone could help me determine if this could be civil war era?
Thank you

 

[UCVRelics]

The 1851 sword plate had several different type backs. The early ones are like the one below. The style of your is a late war into Indian war period. With the bench mark numbers I'm leaning late CW. Nice plate. Thanks for sharing it with us.

The adapted and new pattern in 1874 that had backs like the one below.

 

[GreenMtBoy]

That is quite a surprise. I was thinking it was buying a repo more modern copy. In only questioned that due to the finer details. Thank you!

 

[JOHN42768]

Welcome, enjoy. I agree with Richard that it is Civil War. Depending on measurements, but if 51mm x 83mm, I'm calling it Plate 657. Described as "Waist Belt Plate, Regulation 1851 Pattern, Officer, ca. 1863-1865" per "American Military Belt Plates" by Michael O'Donnell & J. Duncan Campbell

 

[GreenMtBoy]

I wanted to share a neat thing In found on this buckle. It looks like someone put their initials on the back.

 

[JOHN42768]

Initials TW, but no way of knowing when or who. I'm guessing not carved a long time ago as the brass in your fist photos is much to bright in the knife cuts. Did you measure the plate?