Company Names, addresses, dates¹:
  Rammel Manufacturing Co, 408-410 Princess, Alexandria (1910-1915)
  Rammel Manufacturing Co, Wilkes cor Columbus, Alexandria (1916-1919)
  Rammel Manufacturing Co, N. St Asaph cor Pendleton, Alexandria (1920)
  Rammel Manufacturing Co, 119 King, Alexandria (1921)
  Rammel Manufacturing Co, 126 N Royal, Alexandria (1923)

  E O Rammel Co, 408 Princess, Alexandria (1918-1924)

Notes:
In 1910 the Rammel Manufacturing Company was run by 2 brothers:
    Ernest Ott Rammel (b. Apr 28, 1873 in Germany, d. Oct 7 1951 in Alexandria VA) ^2,3
    William Louis Rammel (b. Mar 30, 1883 in Alexandria VA, d. 1961) ^2,4
They took over the bottling establishment that was previously run by Frank W. Brawner.
The city directories list Ernest & William as proprietors from 1910-1912, then just Ernest from 1913-1916, then just William from 1917-1924. Ernest ran a separate bottling company called "E O Rammel Co" from 1918-1924¹.

Prior to 1910, the Rammel brothers worked for the Rammel Hotel & the "A. Rammel & Sons" Restaurant with their mother Augusta Rammel (b. abt 1849 in Hannover Germany). In the years that he wasn't working for the Rammel Manufacturing company, William went back to working for the Hotel & Restaurant¹.
None of the city directories mention Augusta Rammel as being associated with the Rammel Manufacturing Company, however the July 1st 1915 Richmond Times Dispatch lists her as the president of the company⁵.
The Rammel Manufacturing Co was described in various years as Ginger Ale Manufacturers, Soft Drink Manufacturers, and Bottlers. The 1917 directory lists them as distributors for "Pablo", "Reif's Special", and "Grapefruitola".¹. Pablo was a non-alchoholic beverage from Pabst⁶, and Reifs Special was a non-alchololic hops-based drink⁷.

The 1920 directory lists the Whistle Bottling Co at the same address as the Rammel Mfg Co. Likewise the 1921 directory lists the Christo-Cola company at the same address. So my guess is that these companies were either owned-by or working closely with the Rammel Mfg Co.
One of the bottles below says "SATANET" - this appears to be a brand of soda that was sold in other places besides Alexandria. Satanet may have been created by the Garrett Company in Norfolk VA, which got a copywrite on the phrase "Satan-et. The drink with a wink" in 1915⁸.

Rammel Manufacturing Company Bottles:

	book # 575 This is an 8.6" Sun Colored Amythest BIM crown top with a very crooked neck, embossed: shoulder: REGISTERED oval slugplate: RAMMEL MFG. CO. / ALEXANDRIA, VA. below slugplate: THIS BOTTLE / NOT TO BE SOLD
	book # 577 This is an 8.3" clear BIM crown top embossed: front: RAMMEL MFG. CO. / ALEXANDRIA, VA. base: OW / 1
	book # 578 This is a 7.8" clear machine-made crown top embossed: front: REGISTERED / RAMMEL MFG. CO. / ALEXANDRIA, VA.
	book # 625 This is a 7.8" clear machine-made crown top embossed: front: SATANET / TRADE MARK REGISTERED / RAMMEL MFG.CO. ALEX.VA. back: SATANET / TRADE MARK REGISTERED / CONTENTS 7 FLUID OUNCES base: S The bottom of the bottle has a manufacturing defect, as it is very lopsided.

	book # 576 This is an 8.5" clear BIM crown top, embossed: shoulder: REGISTERED oval slugplate: E.O. RAMMEL CO. / ALEXANDRIA, VA. below slugplate: THIS BOTTLE / NOT TO BE SOLD
	book # 579 This is an 8" aqua machine-made crown top with a ring on the neck, embossed: front slanted in script: E.O. Rammel Co. front on heel: 7 FLUID OZS. back slanted in script: Alexandria, Va. base: A.G.W. / 94-1

	This is yellow bottlecap with red writing that says: RAMMEL MANFG CO. / GINGER ALE / COLORED WITH / CARAMEL / ALEXANDRIA, VA.
	This is a 3" long metal bottle opener (front & rear views shown), marked as follows: front: KEY TO / RAMMEL'S / BEVERAGES rear: RAMMEL MFG. CO. / ALEXANDRIA, VA.
	This is a 3.5 x 6 inch cardboard postcard, with a wheel that you can turn. The wheel has faces that have red and blue marks, which are filtered out by the red & blue colored plastic. The back is marked like a postcard, with a place for the stamp. It has the following written on it: These faces will change, but University Club Ginger Ale never will because it cannot be made any better. Manufactured and Guaranteed by THE RAMMEL MANUFACTURING CO. under Serial No. 19355. THE DONKER & W. CO CHICAGO.