in addition to the suction scar on the base (point #5 above and picture to the left) can date no earlier than 1905 and are usually post-1910. Though patented and first used to a limited degree in 1903, the first Owens Automatic Bottle Machine licenses were granted to other manufacturers in late 1904 making 1905 the effective “beginning” (i.e., terminus post quem) date for bottles with all of the above listed machine made diagnostic characteristics (Miller & McNichol 2002). Bottles which have all the primary characteristics noted above (#1, #3, #4) instead of the suction scar (#5) were produced by non-Owens automatic or semi-automatic machines and are somewhat harder to precisely date, though escort service Springfield the vast majority post-date 1905 also.
Blowing sky would-have-been offered by the latest hose visible at the top the new group of strike molds to the left, where finally “blow” part of the duration taken place
It should be noted that one fairly early press-and-blow semi-automatic machine was designed to produce slim bore bottles. It was noted in 1910 that the Cumberland Glass Company (Bridgeton, NJ) had “. succeeded in perfecting a machine that will satisfactorily produce narrow neck bottles, such as catsups, beer bottles, etc., at a big saving over the hand method.”