Instructions
Examine your item, paying particular attention to the silver mark, the maker, its weight and its condition. Online auctions can command excellent prices, but only if you provide all of the relevant details.
Research the silver marks or hallmarks, either in books such as "Jackson's Hallmarks" or online on sites such as The Online Encyclopedia of American Silver Marks. Almost all silver has some kind of mark. The vendor will want as much information about it as possible. Draw attention to any manufacturer's or retailer's marks -- the right mark can add considerable prestige.
Weigh your item on a pair of scales. As of October 2010, silver had a scrap value of over $20 an ounce, Assess your piece carefully for any dents or cracks, and check that the silver marks are crisp. Illegible silver marks can decimate a piece's value.
Photograph your item and then take close-up photographs of the silver marks and any decorative features. You are responsible for describing all aspects of the piece accurately. Say what the item is, what silver marks it has and what they mean. Draw attention to any attractive features and be honest about any defects. If you are still uncertain about some of these factors, be honest about that too and be as descriptive as possible so that the collector can make up his own mind.