Company Names, addresses, dates^1,2:
  Yankee Bottling Co, 640 C Street NE (c.1924-c.1936)
  Yankee Bottling Co, 521 Morse Street NE (1939)

Notes:
The only years the Yankee Bottling company shows up in the city directories are 1925 (at 640 C Street) and 1939 (at 521 Morse Street). But I've seen mentions of the company at 640 C street in newspaper ads between 1924 through 1927, and again in 1936.
Newspaper ads say that the Yankee Bottling company bottled Gunther's near-beer in the 1920s (during prohibition), and Gunther's regular beer in 1936. Gunther's beer was brewed in Baltimore. The Gunther's beer ads depict a plain, smooth, un-embossed bottle with a label, so I don't think any of the ornate bottles depicted below held Gunther's beer.
The address 640 C Street NE was previously occupied by another bottler, Henry L. Otto, from 1890 to 1921¹.
A descendant of the owner of the Yankee bottling company tells me that they also had a plant in Waldorf MD.

Bottles:

	book # 726 These are 8" deco machine-made bottles embossed: front/back shoulders: (star) front vertical: YANKEE BOTT. CO. / 640 C-ST. N.E. (star) / WASHINGTON, D.C. front horizontal: CONTENTS 6 1/2 OZ. back horizontal: THIS BOTTLE NEVER SOLD base: D.O.C. 252-2 The left one is clear; the right one is aqua, and differs in that the base embossing says "D.O.C. 252-1".
	book # 727 This is a 9.25" deco machine-made bottles embossed: front: YANKEE back: BOTTLING CO. / WASHINGTON, D.C. base: 8 FLU. OZS. / 2
	book # 728 This is a 9" machine-made bottles embossed: front shoulder: YANKEE / BOTTLING CO. / CONTENTS 8 FLU. OZS. rear shoulder: YANKEE / BOTTLING CO. / CONTENTS 8 FLU. OZS. base: 640 C ST. N.E. / 7543-1 / B42 / WASHINGTON, D.C.
	book # 729 This is a 9.25" deco machine-made bottles embossed: upper ring: YANKEE BOTTLING CO. lower ring: WASHINGTON, D.C. CONTENTS 8 FLU OZS. base: D.O.C. 252-2
	book # 731 This is a 9.25" deco machine-made bottles embossed: front: NORTH POLE BRAND / REGISTERED / YANKEE BOTTLING CO. / WASHINGTON, D.C. back: NORTH POLE BRAND / REGISTERED / MIN CONTENTS 10 FLUID OZS. / D.O.C. 575-2

This is a multi-colored label for a large (1 quart) bottle, that says: label: Mountain Rock / BRAND / (picture of mountain scene in circle) Sparkling / CONTENTS 1 QT.FL. / BEVERAGES / MADE FROM PURE CANE SUGAR, FILTERED WATER AND THE BEST INGREDIENTS / OBTAINABLE PRPERLY CARBONATED. EVERY BOTTLE STERILIZED. / BOTTLED BY / YANKEE BOTTLING COMPANY / WASHINGTON, D.C. None of the embossed Yankee bottles I know of would have been able to hold a quart, so it's likely that this label went on an un-embossed bottle.

This is multi-colored labels for a 16 ounce (1 pint) bottle. It would have been on the neck of the bottle. It says: neck label: Mt. Rock / BOTTLED BY YANKEE BOTTLING CO. / WASHINGTON, D.C. / Sparkling Beverages / Serve Cold / CONTENTS 1 PINT FL.