The Lawrence 120 is their basic "Tom Threepersons" model. He was a famous Texas lawman and is generally accredited with developing that particular design,one which has been copied by many,many holster makers since the 1950's.The one pictured should fit a 6" K or N-frame revolver. Here are several more by other makers with optional lining and hand carving.
f.t.
p.s. Welcome to the forum! If you would be interested in selling them,drop me a PM.