Day 329-Seabreeze Satin Diamond Optic
I know that there are collectors who just love the satin water bottles. I can take them or leave them, unless they are optic. Optic water bottles in satin are a special treat for the eye as the satin finish seems to both soften and define the optic pattern all at once. So far, satin optic is a fairly limited commodity in water bottles. Part of the reason for this is that the optic pattern is created by thicker and thinner areas in the glass. The thin areas can sometimes blow out when the satin finish is created (by sandblasting.)
Satin water bottles have no date etched on the bottom because the whole bottom is etched. If they have a label, the label is inside the neck.