Company Names, addresses, dates¹:
  C.G. Mueden, B north corner 5th East, Washington DC (1866)
  Abner & Mueden Brewery, NY Avenue between 1st & 2nd Streets, Washington DC (1867)
  C.G. Mueden, M Street North corner N Capitol Street, Washington DC (1868)
  C.G. Mueden, N Street North near 2nd Street, Washington DC (1869)

Notes:
Charles Godfrey Mueden (1838-1913)² was a Washington DC merchant with many different occupations over the years¹, including brewing beer. He's listed as owning a brewery at the corner of B and 5th Streets in 1866.

Then in 1867, he teamed up with Edward Abner, a Saloon owner, and started the Abner & Mueden brewery on NY Avenue. Abner & Mueden claimed all bottles and jugs marked "G.F. Mueden", "C.G. Mueden", "Alex. Fegh", "P. Hohl", "A. Miller" and "A. Mueller".³

The partnership was short lived, as the 1868 directory has Abner back on his own, and Mueden on his own as a Weiss beer brewer at a different address. The 1869 directory has Mueden at still a different address, and the city directories in subsequent years list him as having various other occupations at various Washington DC locations.

Bottles:

book # (unlisted) This is a 7.5" tall, tan colored stoneware beer bottle. It has the following stamped on the shoulder: stamped: C G MUEDEN