The Universal Bach, c1986: t.p. (American Philosophical Society) t.p. verso (APS)
MWA/NAIP files (hdg.: American Philosophical Society; note: oldest learned society in America, founded in Philadelphia in 1743 by Benjamin Franklin; largely inactive from 1744-68; on 12/20/1768, it united with a similar rival society, the American Society, Held at Philadelphia, for Promoting Useful Knowledge, and the new official name became American Philosophical Society, Held at Ph