Interesting 1890 Hand hotsell Carved Stone Plaque indicating unknown army / military coat of arms / Crest / Hand / Flag

Charming antique coat of arms / crest (possibly military related), carved by hand. Indicating year 1890.
Unknown origin/ purpose.
The back has an inscription, which I cannot make out.

Measures 6" long, 4 1/2" wide.

In good hotsell antique condition with a few chips to the stone as pictured; Please see images for full item description.

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