Usually something rare or unusual and in pristine condition or nearly so. If very rare condition doesn't matter as much.
I realize that concerning original 19th century, Colt 2nd/3rd Gen, etc., firearms. I am speaking about imports. There are many replicas that were made decades ago, to include various distributors, variations, short runs, etc. Do the many guns that Davis (RPRCA) collected that are fairly scarce qualify? Does condition matter?
Case in point: I have a Pietta 1851 Navy .36 4-screw cut for shoulder stock (AZ/1990) with brass BS/TG. Pietta has not made one of these in over 2 decades since they went to CNC machining. However, Pietta does market an 1861 Navy .36 4-screw cut for shoulder stock with a steel BS/TG (the strange part being that the BS does not have the shoulder stock attachment "divot").
What is to preclude someone from swapping out the 1861 barrel assembly for an 1851 Navy barrel assembly and calling it a "collector" item (other than the date code on the frame)?
I have a Pietta Rigdon & Ansley parts gun that Pietta never made.
How would anyone know if Pietta ever made any of these "one-off" guns?
I have a genuine Pietta Dance .36 (one of 35 ever produced) that never appeared in any Pietta catalogs. Would that be a spurious revolver?
Just asking the questions, sir.
Regards,
Jim