Thought I would take a moment and share this flask with you. From the Directories, he was not in business at this address very long.BIELENBURG, HENRY1) FULL 1/2 PINT/H. BIELENBURG/441 FIFTH AVE./BROOKLYN, N.Y. Amber; strap side; letter plate. Listings found:1883: No listing found. 1884-89: Retail wines and liquors at 1039 Myrtle Ave.1897: Retail wines and liquors at 1371 Fulton St.1899: Retail wines and liquors at 441 5th Ave.1902-03: No listings found.[attachment=DSC00031.JPG]