You are buying the pair. Size is 6 inches tall, 3.75 across the base My black light is broken, but I did test this prior and it is uranium glass, glows under black light. I guarantee. Ground pontil on bottom. Applied Acanthus leaves. Leaf is a two tone amber. Glass is very custard looking. Unsigned, I see a lot of this style attributed to Harrach or Stevens and Williams. Both worked a lot with this applied technique. I am not expert enough to know origin. Age: I place as late 1800's to around turn of the century. Condition: There is one of them that I am showing the bottom in the picture that shows a hairline crack on the bottom. Does not appear to be a structural issue, you can't see it if you look down into the vase from the top. This same vase has what I call stippling along the rim a bit. It was made that way, just a small area the glass is a bit bumpy. Otherwise they are in great shape.