Bottle 50694AC - Buffum & Company  Put variants of this bottle on a shelf.

Embossed: BUFFUM & Co (in block letters around bottle) / PITTSBURGH // c //
Dimensions: 7 1/4 x 2 1/2 (3 3/4)
Manufacturer: Not Known
  Material: Glass Design: None Mold Type: Two Leaf Mold
  Form: Cylindrical Edge Design: None Plate Mold: No
  Shape: Soda Base Design: None Plate Code: None
  Sides:   Shoulder Design: None Sealed: No
      Sunken Panels: None    
Pictures: None
Notes: The "o" in "Co" is raised and underlined.

Variants

1. Aqua, Improved Pontil, Inverted Taper, Hand Blown, Cork Stopper, Pittsburgh, PA, United States
Comments: None
Contributor/Source: Tod von Mechow
 
2. Deep Aqua, Improved Pontil, Rounded Taper, Hand Blown, Cork Stopper, Pittsburgh, PA, United States
Comments: None
Contributor/Source: Glass Works Auctions