Are these old bottles worth anything?

Q: I have about 50 old bottles that my husband dug up on an old farm several years ago. Can you recommend a good reference book that will help us identify and place values on them? — Pere, Armonk, N.Y.

A: Although there are dozens of books about bottles, one I especially like is the Antique Trader Bottles Identification and Price Guide by Michael Polak, published by Krause Publications and now in its 4th edition. Often referred to as the “bottle bible” by collectors, it has more than 1,000 detailed listings, 300 photographs (many in full color) and accurate price information.

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Q: I have a collection of Barbie dolls and related products. I would like to sell them. — Carol, Clermont, Fla.

A: Annette Givens is an appraiser who specializes in Barbies. Her address is 1958 Matador Way, 222, Northridge, CA 91330. You should expect to pay a nominal fee for her services. Another good source is the Barbie Doll Collectors Club International, P.O. Box 245, Garnerville, NY 10923.

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Q: I have a large collection of Royal collectibles, mostly British. In addition to several Lady Di pieces, I have a Prince Charles cup issued when he was born and a coronation plate I purchased in London when Queen Elizabeth II was crowned. Who can I contact to find out current values? — Arthur, Glenwood Springs, Colo.

A: Suzan Algul is a private collector who is quite knowledgeable. Her address is 5131 Calle Cumbre, Sierra Vista, AZ 85635. Douglas Flynn is a dealer who buys and sells British Royalty items. His address is 126 East Main St., P.O. Box 294, Lilitz, PA 17543.

TIP OF THE WEEK: Since more and more people are beginning to collect vintage pewter pieces, here’s some words of advice. Pewter is soft and can be easily damaged or melted. Never place it near a burner on a stove or mechanically buff it. Heat can warp or melt pewter and incorrect buffing can change its color.Avoid harsh cleansers and steel wool.

Instead, use a commercial polish especially formulated for pewter.