[Exhibitman]

I've wrestled with the semantics in writing my boxing card books. I agree that "unique" means 1 of 1. Leon's T231 is unique. T220 Silver Donovan is unique. All of the N175-style boxers are unique [1 of 1s]. The Sporting Life Jeffries-Munroe is unique. Beyond that, the way I look at it doesn't have hard dividing lines, especially because we don't have mint numbers or other production figures to pin down what might be out there.

I generally analyze rarity based on frequency of availability and known numbers. If a card is seldom offered for sale and the pop of known specimens are traceable when they do come up as having come from specific collectors or finds, it is a rare card as far as I am concerned. Does't matter whether there are two or a dozen examples, or how many may be offered coincidentally in any given time frame due to collector deaths, liquidations, etc. The 1948 Leaf Graziano is rare. Doesn't matter that several may be offered over a given time frame because all of them are traceable to specific collectors liquidating known examples [Hull, Dreier, etc.] or from out of hobby sources. The Baltimore News Ruth is a good example in baseball. For a while it seemed like every major auction had one, but the pop dried up quickly and the card disappeared into collections. Once a card starts to be offered for sale regularly and isn't readily traced, it moves to scarce status. T206 Plank is a very good example of a scarce card. There's a pretty decent pop out there, it transacts regularly, but is far less available than most T206s. T206 Wagner is on the cusp of scarce-rare IMO. When there are multiples of a card offered every year but you might have to wait a while to find one you want, it is uncommon. Say a T206 with a specific back that you want. A Chase with trophy may be readily acquired and is common; not so much when you want a Piedmont 460 Factory 42 back. When you can get the card or assemble a set within a year if price is no object, it is common. Most any postwar mainstream set.

I agree with Jay as to condition rarities; I'll take the "wow I've never seen that before" over the "wow, that's an 8-9-10" any day.