Pat ---- There are two factors , the first is what is your time frame . The second is what are you selling .
These are questions you need to explain further before anybody can help you and point you how to move forward .
Your going to get answers from "I can put cash on your kitchen table" to" it will take you a few years to sell it all on
ebay"
Then you will receive offers of "25% to 50% of what I can get on
ebay " to "the stamp auction firm will sell it and take 30% and what doesn't sell is return to you and it will take 6 to8 months to get a check ."