If you want to sell at auction, information about the most prominent auction companies is listed in Sites of Interest. Also on that page you will find links to companies offering steins and related items for sale.
Any SCI officer may be contacted by email on the page which lists our current officers, SCI Officers. Note that ethically, they are not able to respond to questions about the valuation of your steins or offers to sell.
SCI’s primary mission is to advance the hobby of stein collecting through research and publication of materials developed by collector/members. Three primary initiatives in that regard are Prosit, our quarterly publication, the series of Featured Steins on this site, and SteinTalk, a forum for asking and answering questions about steins.
And, of course, if you want to join this dynamic collecting community, visit our Membership page.