As an aside, I recently had Dave Lanara (
www.davelanara.homestead.com) fit a properly-marked 5 1/2" barrel and add one of Rinaldo A. Carr's cartouches to my long-barrelled Cavalry version of the 'Peacemaker Centennial' - thus making it an example of a revolver that Colt had refurbished to new specifications during the refurbishment required in 1895-1896, when the Government decided that all .45 caliber revolvers would have shorter barrels.
Ordnance then recalled those revolvers then in active service to both Colt and to Springfield Armory to have the work done - new barrels (or shortened ones with new front sights), new grips (or originals, if in excellent condition), and a complete refinish and reinspection before re-issue to the field.
Incidentally, that first series kept their original serial numbering - everything done afterwards had mixed numbers.
Colt refinished to what was an essentially new commercial finish, while Springfield's finish was duller.
Those short-barrelled, so-called 'Artillery Colts' got their nickname from collectors - it was never an official designation, but many had been issued to Light Artillery outfis during the Spanish-American War, so a little confusion reigned - were the ones that actually fought through the Indian Wars, saw the Llano Estacado and the wind-swept Plains, and eventually fought the Spanish - there's a lot of Old West history to them all.
Vaya,
Scouts Out!