Men's Frock Coat

From the seller:

This gorgeous gents coat is made from a sage green silk and is heavily embroidered in ploychrome silk floss. It has a stand up collar, oversized pockets under a deep scalloped flaps, back pleats, elaborate embroidery, and a wool and linen lining. A few very minor spots or stains, minor holes in the wool lining De-accessioned from the Met. Museum of Art. It measures 36 inches around the chest, across the back shoulder is 16, sleeve is 23 and it's 45 inches long. Excellent condition and a real beauty to add to a collection.

From Me:

The earliest I'd put this is the late 1770's. I think it's more 1780's.