is a "micro-cosm" in itself....
T206 are different from other issues because Wagner keeps the set extremely popular amongst other variables and highly, highly collected.....there will be deviations sometimes and anomalies in pricing due to other variables( venue, timing, marketing, ect_).....but trending for these cards should follow the Wagner trend over the last 100 years...
all positive increases overall over the years...
the "bubble" never really exists for T206, because of the viability and proven collectability for over a century...