20 Henry Street, April 1, 1937.

The Mason, Au and Mangenheimer Candy Company constructed this six-story brick factory building in 1885. It was designed by Theobald Engelhardt, who constructed many of Greenpoint, Williamsburg, and Bushwick's industrial structures. The candy company, which was established in 1864 by two confectioners, produced both chocolate covered and gummy candies. Their best known products were Mason Peaks and Mason Mints (chocolate covered coconut and mints, respectively). They also made Dots and Crows, both gumdrops and still available today!

The candy factory occupied this building until 1949. In 1972 the Mason Company was purchased by Tootsie Roll. In 1975 the building became a Mitchell-Lama affordable housing complex called the Middagh Street Studio Apartments. The affordable housing program was ended in 1999 when the landlord bought the building out of the program. A condo conversion was undertaken in the early 21st century. First coming onto the market during the 2008 recession, the fully completed conversion (which included the original factory building and an additional 14-unit building next door) went on the market in 2012. The factory units now sell for between $450,000 and $2.595 million. The conversion, thankfully, included the saving and renovating of the candy factory's painted facade signs.