Picture was taken in sunlight. I would call it a blue aqua or light blue.

I can't find any dings, nicks or ticks at all. Not sure of the vertical line to the right of the bubble. Could be a small internal stress crack, but it does not go to either the inside or outside surface.

Dome is embossed with "XI". The base embossing is in extremely good condition as seen in the second picture.

$15.00 plus actual shipping.