This frame has a deep cove with three large reeds at the top edge. Cove sides with a rounded back edge. Original finish. The liner is missing. No rabbet.

Good, gesso losses, missing liner

Sight size: 19 1/4 X 29 3/8
Rabbet size: 19 1/4 x 29 3/8
Moulding width: 3 1/2