The price ranges shown on this website are based on a database of almost 90,000 auction sales during the past 10 years. With common colors in common shapes, the high price in the database may be 10 times that of the lowest figure--a range that is impractical from the viewpoint of buying and selling.

Consequently, I have chosen prices from the middle of the database range to show here. Obviously then, some have sold for less and some for more than the stated range. In somes case I show an additional listing for those pieces that exceed the range because they were exceptional pieces in some way. If you are a collector and must have a piece in a particular color, there is nothing wrong in paying more that the range I give here. If you can get it at the low end of the range, so much the better. Just because an item has sold above the stated range doesn't necessarily mean it's better than average. As sometimes happens in an auction atmosphere, a couple of folks have decided that they want that piece for their collection and devil take the hindmost.

For some colors, only one, two, or three items may have sold. That's too small a sample to establish a range, so I list them individually with the year of the sale shown.

These prices are only useful to help you estimate the value of your piece. There is no way to state accurately the value of any one item.