German Half Post Method of imparting a pattern on blown glass. the embryonic bottle
(parison) was dipped back into molten glass coating it with the hot 'metal.'
Often the bottle was then put into a pattern mold and expanded slightly, leaving a decorative pattern on the bottle body.
A ring below the neck showing where the second coating begins is a tell-tale
mark of the German Half Post Method. This method was used in the late 1700s and
both in Europe and here in the United States at the Keene and
Coventry glass works.