Hints abound. First, the facade is decorated with several of horn and tambourine carvings.
Plus, nearby Union Square in the late 19th century was the city’s music and theater district. Stores for pianos and other instruments cropped up here at the time; Steinway had a showroom there.
Whether it housed a music business or not, the original company started with an S—the letter is carved into two rooftop turrets.