875 Park Avenue is a classic 1912 prewar building on the Upper East Side, featuring a beige limestone exterior with a two-story limestone base and intricately wrought iron-framed windows. The art deco-carved double-door entrance leads to an elegant lobby, complemented by landscaped sidewalks. Designed by George and Edward Blum (also of 830 Park Avenue), the 12-story coop has 50 luxury apartments with gracious layouts. It converted to co-op status in 1948.