Inherited thousands of stamps
I've come into possession of over a dozen stamp books, a load of stacks in wax paper, and all sorts of other related items. Where on earth do I begin? They're US and foreign presumably 1800s to 1950, with some "key" 1950-1980 pieces. Both of my grandfathers and my father collected them. Looking at them makes my OCD turn to volume 10. Where and how do I even begin pricing these or finding a place to sell them..?