Not important how much it cost. Money coming and going. Important is the honor and honesty seller. And here I see that perhaps I cheated.
Well, in my mind, the price you paid matters in the following way:
If you paid $200.00 or $300.00 Dollars ( or it's equivalent on your Currency ) and the older ASM Revolver is a good one and functions well and so on, then, it would not matter as much what the Seller had described it as, since it is still worth about what you paid for it.
And it may well be a good example of some of ASM's better Work, and provide decades of enjoyment and be a reliable, solid Revolver.
If you paid greatly more than that, based on the seller's description of the Revolver being intrinsically something more than it really is, then, the difference between what you paid, and what the Revolver is reasonably worth, becomes important.
You can review Auction Listings ( and follow them to see what the closing price ends up being ) on 'Gunbroker' or other internet Auction Sites, to decide for your self, what a nice enough, used, Armi San Marco 'WALKER' rendition tends to sell for, if wishing to present to the Seller from whom you had bought yours, some realistic Documentaion, representing the actual 'going rate' for this Make and Model Arm.