An American Silver Porringer, Josiah Austin, Boston, circa 1760
of typical form with keyhole handle, engraved on handle with contemporary initials F over R*M, the circumference of the bowl and base engraved with presentation inscriptions
marked in center of bowl I. Austin in rectangle (Kane mark A)
length 7 1/4 in.
Antiques, August 1966, Vol. 90, p. 151
Kane, Patricia E., Colonial Massachusetts Silversmiths and Jewellers, 1998, p.156