Company Names, addresses, dates¹:
  John H Schlueter, 1601 5th street NW (1890-1907)
  Northwestern Bottling Co, 1601 5th street NW (1908-1914)
  Northwestern Bottling Works, 1601 5th street NW (1915-1922)
  Northwestern Bottling Co, 1601 5th street NW (1923-1934)

Notes:
John H Schlueter (born 1865 in South Carolina²) ran a bottling company at 1601 5th Street. The name became "Northwestern Bottling Co" starting with the 1908 directory. The company stayed there until 1934.
In 1902, Schlueter was listed as a bottler & wholesale Liquer dealer, with an Estimated Pecuniary Strength of $3000-$5000, and a credit rating of "fair"³.
The address 1601 5th NW shows up as "Gridiron Club Beverages" starting in 1936.

Bottles:

(enlarge)	This is a 6.7" aqua Hutchinson embossed: round slug plate: THE NORTHWESTERN BOTTLING WORKS / 1601 5TH ST. N.W. / J.H. SCHLUETER / WASHINGTON, D.C. back: REGISTERED NOT TO BE SOLD
(enlarge)	This is a 9.4" aqua blob top (with porcelain stopper) embossed: front in slanted script: THE NORTHWESTERN / BOTTLING WKS / J.H. SCHLUETER Prop. back: REGISTERED
(enlarge)	This is a 9.1" aqua baltimore loop (with metal stopper) embossed: oval slug plate: THE NORTHWESTERN BOTTLING WORKS / 1601 5TH ST. N.W. / J.H. SCHLUETER / WASHINGTON, D.C. back: REGISTERED / NOT TO BE SOLD
(enlarge)	This bottle seems to have the same slug-plate as the baltimore-loop top bottle above. It's a 9.0" aqua crown top embossed: oval slug plate: THE NORTHWESTERN BOTTLING WORKS / 1601 5TH ST. N.W. / J.H. SCHLUETER / WASHINGTON D.C. back: REGISTERED / NOT TO BE SOLD
(enlarge)	These 2 bottles have a similar slug-plate. The one on the left is an 8.3" clear crown top embossed: round slug plate: THE NORTHWESTERN / BOTTLING WORKS / 1601 / 5TH ST. N.W. / J.H. SCHLUETER / WASHINGTON / D.C. back: THIS BOTTLE / NOT TO BE SOLD bottom: O D The one on the right is an 8" aqua crown top embossed: round slug plate: THE NORTHWESTERN / BOTTLING WORKS / 1601 / 5TH ST. N.W. / J.H. SCHLUETER / WASHINGTON / D.C. back: THIS BOTTLE / NOT TO BE SOLD / C&CO 22
(enlarge)	This is similar to the bottles above, but it has an oval shaped slug plate. It's an 8.0" SCA crown top embossed: oval slug plate: THE NORTHWESTERN / BOTTLING / WORKS / 1601 5TH ST. N.W. / J.H. SCHLUETER / WASHINGTON D.C. below slug plate: THIS BOTTLE NOT TO BE SOLD back: REGISTERED
(enlarge)	This is an 8.2" aqua crown top with an extended neck, embossed: round slug plate: THE NORTHWESTERN BOTTLING WORKS / 1601 5TH ST. N.W. / J.H. SCHLUETER / WASHINGTON D.C. back: REGISTERED NOT TO BE SOLD
(enlarge)	This is a 9.7" aqua crown top embossed: front in slanted script: The Northwestern / Bottling W'Ks / J.H. Schlueter Prop. back: REGISTERED
(enlarge)	These are 9.3" sun-colored-amethyst crown tops with slightly different shaped necks. Both are embossed: oval slug plate: THE NORTHWESTERN BOTTLING CO / WASHINGTON, D.C. / 1907
(enlarge)	This is similar to the bottles above, but amber colored. It's 9.3", embossed: oval slug plate: THE NORTHWESTERN BOTTLING CO / WASHINGTON, D.C. / 1907 back: REGISTERED / NOT TO BE SOLD
(enlarge)	This is an 8.5" clear crown top embossed: shoulder: N B Co oval pattern: NORTHWESTERN / BOTTLING CO / 1601 5TH ST. N.W. / WASHINGTON, D.C. below oval pattern: / REGISTERED / THIS BOTTLE / NOT TO BE SOLD
(enlarge)	These are 9.4" lady-leg crown top bottles. Left is amber, right is aqua. Left one is embossed: front: THE NORTHWESTERN BOTTLING CO / WASHINGTON / D.C. / REGISTERED / THIS BOTTLE / IS NEVER SOLD bottom: 20 Right one is embossed: front: THE NORTHWESTERN BOTTLING CO / WASHINGTON / D.C. / REGISTERED / THIS BOTTLE / IS NEVER SOLD back: CG CO 656
(enlarge)	These are clear machine-made crown top bottles. The difference between the two is the size (left is 8.5" embossed "7 FL. OZ.", right is 8.25" embossed "6 1/2 FL. OZ."). They are embossed: front shoulder: NORTH WESTERN BOTTLING CO front near the base: REGISTERED back shoulder: WASHINGTON, D.C. back near the base: CONTENTS 7 FL. OZ.

(enlarge)	These bottles are 9.5" BIM crown tops with a picture of a flag embossed on them. The one on the left is aqua and is embossed: front: JOHN H. SCHLUETER / BOTTLER / 1601 5TH / STREET / N.W. / NOT TO BE SOLD / REGISTERED back: C. & Co The right is sun colored amethyst embossed: front: JOHN H. SCHLUETER / BOTTLER / 1601 5TH / STREET / N.W. / NOT TO BE SOLD / REGISTERED bottom: B R S CO
(enlarge)	This is a 9.5" SCA BIM crown top. Note that Schlueter's name is spelled wrong ('eu' vs. 'ue'). It's embossed: front: J. H. Schleuter / NO-1601-FIFTH ST. N.W. / WASHINGTON, D.C. back: REGISTERED
(enlarge)	This is a 7" clear hutchinson (w/ stopper) embossed: tombstone slug plate: J.H. SCHLUETER / 1601 / 5TH ST. N.W. / WASH. D.C.

This is a porcelain stopper. It is marked with red letters in a black circle: "J.H. SCHLUETER / 1601-5th, St. N.W. / WASH. D.C.	(enlarge)
This is an advertisement from the "Hunter's Official Guide to Washington, 1909". It shows that Abner-Drury beer was bottled by the Northwestern Bottling Co.	(enlarge)