[glynparson]

It is the third rarest card in what is arguably the most popular, certainly the most popular prewar, set of all-time. You can only really compare plank to Wagner , Doyle, magie, and the polar bear demmitt and Ohara. With the Wagner and Doyle being scarcer. The fact that there are rarer prewar cards is irrelevant, look at all the Wagner's far rarer than the t206. It is a function of both supply and demand. The fact that Plank is a HOf lends some value but the bulk is due to its scarcity in such a hugely popular set. I don't find most other Plank issues to have a premium over comparable hall of famers.