This one was spotted on an apartment building in Manhattan’s East teens. ST is for Stuyvesant; Peter Stuyvesant’s bouwerie occupied today’s East Village and Gramercy Park neighborhoods.
Hidden behind a contemporary banner is this swinging 1960s sign, for Frenchman, an air conditioner business on First Avenue and 19th Street.
OR for Orchard? Oregon? Both Manhattan exchanges spanned the East Side below midtown.