For what does klipspringer call gatsby's house?

Klipspringer calls about a pair of shoes left behind when he quickly moved out of Gatsby's house. He wants Nick to ship them to him.

“What I called up about was a pair of shoes I left there. I wonder if it’d be too much trouble to have the butler send them on. You see, they’re tennis shoes, and I’m sort of helpless without them. My address is care of B. F. ——”