These are about 3/4 of an inch long. I look at a lot of cameo jewelry and these strike me as a cut above in terms of quality. I bet they were expensive. Often when you get small cameos like this the detail is missing. Think what it takes to carve these by hand in this size. The detail on these are excellent as is the fabrication. When blown up to giant size you can see a spot or two of tarnish on the silver. Actually you won't even see it looking at them normally, but you are welcome to clean them. We do not polish antique jewelry. Not sure the age on these somewhere in the 100-70 year old range I would think.