This is one(only 3 of this particular knife in circulation) of the RAP cutlers made by Colonial,quality knives,which flew under the radar.The top of their line started by Robert Anthony Paolantonio himself,hence the name RAP Cutlers.These are his words.

" I must say it's wicked nice to see some of my very early work, mid 70's..This Old Cutler #533 large stockman has clearly been tricked out big time!! The regular .095, 1095 High Carbon steel blades have been replaced by custom etched, work back springs and blades. Creating my own personal tang stamp within Colonial Knife itself was a bold move, but nobody was going to get in my way back then!!
The neat twin tone Buffalo Horn handles I used to get from my old friend, Adrian Harris (coln' coon), and a few other dealers in Tennessee and Kentucky. The bolster's are a find I'll never forget!
These HAND ENGRAVED BOLSTER'S I had made by Mr. Clint Orms from Texas!
After you showed this beauty the other day, I looked through many old files and sales documents and I've determined that there were only 5 of this exact knife EVER MADE!! I still have two, the other three were sold many years ago, and now you own one!