A lot depends on what you have to sell. If its the older stuff you may want some advise on values to determine what you might get for it. In that case you might even want to try a reserve price the first go around. I'm more into Coke & soda bottles but a good detailed discription on older items will help you. Be sure and list any details- Mfg marks & dates might help. It might also be good to sell your items per item but in groups at once. Say if you had 8 old coke trays to list them seperate but at the same time. You could also sell these in a group and still do better than selling a whole collection at once of different type items. Be sure & state in your listing to check your other like items. The newer reproduction stuff might be easier for you tell sell in larger groups.