Crystal is actually a term for glass with a lead content of 24% or higher. The lead gives the glass a higher refractive index, allowing it to split light into spectacular rainbows of colour. The production of leaded glass vessels has slowed to a trickle these days due to concerns over the acid in alcoholic drinks leeching the lead from the glass. In practice, this is not an issue for glasses as the alcohol doesn't sit in the vessel long enough, but the use of crystal decanters can indeed cause lead poisoning over the long term.
These glasses are indeed crystal by the look of them, and cut as well. Unfortunately, economic conditions have conspired to flood the market with crystal of all shapes, sizes, conditions, quality, and age. Unless they are signed or marked with a well-known artist or high-end manufacturer, or are of extraordinary quality, artistry, and antique age, most crystal is not worth very much, even if nicely cut. Glasses like these are probably worth $10-$15 a piece at retail. Regardless of their market value, these glasses are very handsome, well made, and in excellent condition. I encourage you to display and use them with pride in your excellent taste!
Re: Glass/Crystal Wine Glasses
Crystal is actually a term for glass with a lead content of 24% or higher. The lead gives the glass a higher refractive index, allowing it to split light into spectacular rainbows of colour. The production of leaded glass vessels has slowed to a trickle these days due to concerns over the acid in alcoholic drinks leeching the lead from the glass. In practice, this is not an issue for glasses as the alcohol doesn't sit in the vessel long enough, but the use of crystal decanters can indeed cause lead poisoning over the long term.
These glasses are indeed crystal by the look of them, and cut as well. Unfortunately, economic conditions have conspired to flood the market with crystal of all shapes, sizes, conditions, quality, and age. Unless they are signed or marked with a well-known artist or high-end manufacturer, or are of extraordinary quality, artistry, and antique age, most crystal is not worth very much, even if nicely cut. Glasses like these are probably worth $10-$15 a piece at retail. Regardless of their market value, these glasses are very handsome, well made, and in excellent condition. I encourage you to display and use them with pride in your excellent taste!