post cards

[sammy]

i have over a thousand post cards most are unused dating from 1900 1910 i was wondering what they are worth and a way to go about selling them for example some are in books of 20 with a sheet of thin tan paper in between each an example of a book that i have is one that has aeroplanes et dirigeables marque L.L.24 vues detachables what would this book be worth it is of many earley airplanes