Q: Give a little information about Wavecrest glass and who made it. A: These decorative boxes and lampshades were made by the C.F. Munroe Glass Co. The firm never actually made glass, but bought blanks onto which it put beautiful decorations. The pieces were made in the United States from 1898 to 1930. Q: We have a very ugly clock which has the name Yorkshire. Please explain. A: It was a broad and rather ungainly shaped clock of the long-case style made in England in the late 1700s and early 1800s. Not many of them survive in this country. Q: We were given a high, carved chair or settee which is called Shaker furniture. Can you explain? A: If it is highly carved, heavily decorated and made of any wood other than pine, hickory or maple, it is not Shaker. All Shaker furniture was very plain. Sorry. Q: We have a glass dish that is frosted with a rose intaglio on it and has the mark of Veryls on it. Explain. A: It would have been made by the Helsey Glass Co. in Newark, Ohio, before 1955 when the firm went out of business. It is some of the finest glass in the United States. Q: I am puzzled about how antique dealers arrive at their prices. It seems no two of them are the same on an identical item. Why? A: Dealers usually up the value from 25 to 50 percent, depending on the scarcity of the item and its price to them. But the difference is in the price of the piece to the dealer. Some pay more, and some pay less. Q: Can you identify a dish marked Limoges -- Trenton, N.J.? A: Limoges of Trenton, N.J., was just a sample of the maker trying to duplicate or copy the fine work of that area in France. The name Trenton, N.J., would indicate it is not from France, and not as fine porcelain as the former. Q: My husband's mother gave us a set of old Bavarian plates. Some of the edges are crooked. They were stood on edge for years: could that have caused it? A: No. Many of the early pieces of china had uneven edges. Q: What is the meaning of the mark: "R.S., Germany"? A: The mark was used by all potteries in Germany in 1873 to 1891. Q: Who was William Saufry? A: He was a Philadelphia cabinetmaker from 1722 to 1787. He's credited with making the best Philadelphia furniture, usually found now only in museums. Q: Where were sugar and flour chests introduced in America? Are they strictly American? A: These metal-lined, box-like containers were introduced in Georgia, South Carolina and North Carolina. They protected the contents of the bins from moisture and from sticky fingers. Q: What is a Soho Lamp? A: The Crosse and Blackwell Grocer Supply Company had these small lamps made in the 1830s. A candle, which fitted into the opening of the glass-enclosed container, could be used for peering into dark corners. Candles could be raised and lowered with a thumb screw. They are rare and expensive. Q: What is the meaning of a darning egg? A: It means any ovoid form of glass, wood, ivory and sometimes precious metals and jade used for darning socks and other hard to get to places. Good collectible, and expensive. Q: We have a wool woven coverlet in full size with colors of red, green and off-white. The date is 1841. Could you give any value range for this? A: Coverlets in fine condition would range between $450 and $700. They are becoming scarce because they are all collected. Q: We have what is called Lustral Ware. Can you tell us where it originated? A: It was decorative wire work from the Lustral Works owned by the Woods and Sherman Co. in Lowell, Massachusetts. Popular in the early 1800s, the pieces were used for fruit and egg baskets, holders for plants and containers for the sewing in the household. They can still be found. Q: In a history of floor coverings, we found the term Macauley carpet, but no explanation. What is it? A: It was a painted floor using patterns designed by the Isaac McCauley Wall Covering Co. of Philadelphia in the 1820s.