Clarence H. Blackall, 1893
National Register of Historic Places
The ancient Spring Lane and Water Street dictated the Winthrop Building’s slender curving form. It makes an incomparable contribution to the streetscape. Though discreetly applied, there is a wealth of ornamentation on this sliver of a building, including egg-and-dart moldings, pateras, and terra-cotta bands in the spur pattern on the third and fourth floors.
This is probably Boston’s first entirely steel-framed office building. It is best viewed from Water Street, looking uphill toward its narrow end and curving side. It strikes a stunning contrast with the stark, pale art deco Post Office next door on Water Street.