Nice that whoever did the rework used a Model 21 style yoke in the beavertail forearm. What is the barrel length? Hopefully the barrels haven't been cut.
The RESEARCH LETTER pick on the home page shows the PGCA has information on this gun to do a letter on how it left the factory.
Also, it is of the time period when the Titanic Steel barrel guns have a K in the barrel steel location on the barrel flats --
105974 02 K in barrel steel location.jpg
instead of the more familiar T in a circle --
151999 03 T in circle barrel steel.jpg