This is the Hartford Mod. .45LC Bisley manufactured by Pietta for EMF at the in Adler, Italy. From the late 70's with an early two digit serial number.
This single action cowboy shooter is in great shape, and considered a "target" model. You can tell from the pictures that it has been well cared for. $350 ftf in SW WA.
Lever action rifles or .300 blackout ammo.