Greenlant408,
Well, from what you indicated, you may have some serious money here. That being said, if you sold the entire collection to a dealer you would take a significant beating (think Pawnstars). Selling to an individual collector would be difficult I would think. Soooo, I come back to
ebay. As you are aware of the big dollar stamps (w/grading), I would sell them individually on
ebay. Otherwise, I would list them on
ebay by country - with pics and full descriptions.
The best time (for a seller) is typically winter, and I would start the auctions at the minimum I would take for them.
I've been selling on
ebay for over 10 years (model trains, art, sporting goods, stamps, coins) and find that a reasonable market value prevails much of the time. And frankly, getting anything close to market value is more than you are likely to get elsewhere.
By the way, this collection sounds really nice......... why are you looking to sell it?