Question: I have enclosed a photo of the mark on an 8-inch-high stoneware crock decorated with two wide cobalt stripes. The crock was given to me by an aunt who insists it is a valuable Roseville item. I would appreciate your comments. - J.P., Ocean View

Answer: The mark you provided indicates your storage crock was produced by the Robinson Ransbottom Pottery Co. of Roseville, Ohio. Founded in 1920 as a result of the merger of Ransbottom Pottery Co. and Robinson Clay Products Co., R.R.P.Co. continues to make stoneware and earthenware items that include crocks, tableware, cookie jars, vases, planters, pet feeders and garden items. Your crock, the company's discontinued Williamsburg pattern made a decade ago, sells for $10 to $14.

Like many other folks, your aunt has confused R.R.P. Co. with Roseville Pottery Inc., once located in Roseville, Ohio. From 1890 to 1954, the company produced high quality, hand-decorated, ornamental art pottery.

During the past several decades, Roseville Pottery items have become highly collected, often commanding thousands of dollars. The most familiar mark found on an old Roseville Pottery piece is a script "Roseville" with block "U.S.A." followed by the object's model number and height. However, experts caution buyers to examine the mark carefully as reproductions abound.

Question: Several years ago, I bought a metal sand toy marked "Wolverine Sandy Andy 61" at a flea market. It consists of a tower, ramp and small cart which when loaded with sand, runs down the ramp, empties and goes back up to the tower for reloading. The toy is decorated with a colorful beach scene featuring children playing by the ocean. Please tell me what you can about it. - N.K., Margate

Answer: Your vintage tin-litho sand toy was made by the Wolverine Supply and Manufacturing Co. Founded by Benjamin Bain in 1903 at Pittsburgh, Wolverine originally made tools and dies. However, after acquiring the Sand Toy Co. of Pittsburgh, Pa., Wolverine began producing "Sandy Andy" gravity-action sand toys that quickly became favorite seaside and sandbox playthings.

Other Wolverine tin-litho toys that have entertained youngsters since then include the "Sunny Andy" and "Sunny Suzy" lines, carousels, games, shooting galleries, girls' housekeeping items, dollhouses and gardening sets.

Wolverine's Sandy Andy 61, introduced in 1954, is prized by a growing number of collectors whose specialty is tin-litho or beach toys. It presently brings $85 to $125 when in good to excellent condition.

Alyce Hand Benham is an antiques broker, appraiser and estate-liquidation specialist whose consulting firm, Treasures Unlimited, is based in southern New Jersey. Send questions to: Alyce Benham, Life section, The Press of Atlantic City, 11 Devins Lane, Pleasantville, NJ 08232. Letters may be used in future columns but cannot be answered individually, and photos cannot be returned.