Is there an antiques roadshow kinda thing online?
You can’t get reliable estimates on line with pictures, or at least no better than putting the image on flickr and asking here. The condition can be judged accurately. Roadshow attracts 5,000 people and is a massive operation to run in exchange for putting on a 2 or 3 part set of episodes from one visit. Some local dealers are doing similar drop in appraisals, at least here in Dallas. Otherwise you will have to go to a place that sells the stuff and offers appraisals for a fee. An appraisal without a fee is an offer to buy and will be very low.