this is more for the 'Conifer' surface pattern that the shape and probably best seen on the third picture - the overall pattern is like the outline of scales seen on a pine cone, but difficult to show when photographing clear glass. As for the back stamp, we're back to what the books describe as the factory mark for c. 1935 - 1949, though this pair look to be very un-worn and date wise more recent, but who knows. When flicked there is a good long lead glass ring, and height is a little over 4 inches.