I have several hundred issues of National Geographic from the '30 -60's - where could I sell them all at once?

Not every issue is there, but there are hundereds and I could list the ones in desirable condition easily if there were a dealer that resells old N. G.'s who'd be interested in these. Many are WWII issues, old cover designs, etc. Any buyers who list what they'll pay for particular years/issues would be appreciated. thank you!