Mid 1800s Glasshouse "M" Question

[Robby Raccoon]

In short, what is the Eastern American glasshouse that embossed their bottles with a serifed M at the heel?

The bases of their flat sided aqua utility bottles seem to always have a pontil and were done in a hinge mold. The lip seems to always be rolled and the bottles are of similar height. They seem to only come from the Eastern U.S. yet predate Maryland Glass Works as they are 1840s-1850s.

One has a label from New York and held a liniment. The other has no location named but was purportedly found in New Jersey and has a Bear's Oil label.

 

[Dogo]

That may not be a glass house mark., Possibly the packer/bottler ?

 

[Troutmaster08]

My first thought was the Maryland Glass corporation but their bottles were cobalt blue (They were the company that made bromo seltzer bottles).

 

[bottles_inc]

No clue, but that bear oil label is fantastic

 

[Dogo]

I believe the Maryland Glassworks was started by Emerson Drug for the Bromoseltzer bottles, probably no earlier than the 1800s

 

[Robby Raccoon]

From what Ive read, Mayland Glass Works is post-1860s. These M-embossed bottles are pre-1860s. M appears on many bottles with different labels from a few states. I believe the spread and different labels suggests it was indeed a glasshouse and not made for any specific company.

 

[shorthandleshovel]

Thanks for all the info. A utility bottle. Appreciate it.