British militaria is not my area of expertisr. Can anyone help me date and identify this jacket? Thanks so much.

The jacket in your photo is a reproduction (or modern-made costume/reenactment piece) of a classic British Army scarlet tunic, most likely inspired by Victorian-era (mid-to-late 19th century) full dress uniforms, such as those worn during the Anglo-Zulu War period (1879) or similar ceremonial/parade dress from the later 1800s into the early 20th century.
 

Thanks a bunch.

Any chance we could get a picture of lining? The quality seems to be a bit better than a re-enactors coat. It follows the typical regs of an infantry regiment coat with Edwardian general service buttons. These continued to be worn into the 30's with the guard regiments wearing them up to present day. The wool looks like high quality British produced fabric.