If you do, state which book, edition, and page you found your example on. Search engines - There are more than a dozen free web sites that will search the web for pages that include keywords relating to your interest or piece. You can often find web sites where pieces like yours are being offered for sale and collector sites with lots of information and links to other sites in that field of interest. One of the easiest is Yahoo . One of the nice things about Yahoo is that when it returns the results of your Yahoo search, the bottom of the results page gives you automatic search options on a variety of other search engines.
Different engines can produce quite different results.
Someone may have already asked you question of discussed a piece like yours on a newsgroup. Internet Auction Sites - There are a number of auction sites on the web. One of the most active is the eBay site. You can use the eBay Search Page to see the results of past and present online auctions by searching on keywords that are likely to include pieces like yours. Be aware, though, that some types of object do well at auction and poorly in other markets, and some object that bring very little at auction have signficant value in live markets.