Why are pre-war postcards suddenly so popular?
I'm just curious. I know there is a hard core group who have always collected them but lately they seem to be more popular to run of the mill pre-war collectors. My own personal opinion, for what it is worth, is that the boom in interest escalated when the grading companies started slabbing and grading them and they became a more tradeable and sellable commodity. I would also opine that a number of collectors have finished collecting sets and are turning to other projects. Thoughts?
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