This corner building, now the site of The Pour House was the long-time location of Frank's Hotdogs, yet another of the many Columbia restaurants I was going to "get around to" and never did before it was too late.
From what I could gather in years of walking and driving past, the place was open late-nights and had a diner-like setup with a serving counter and tables around the walls. It appeared that the owner took a certain pride in the "basic" nature of his setup, and for many years, a window slogan proclaimed "No Reservations Required". Curiously, given how uncommon non-Sandy's hotdog places are, Frank's was just down the street from Lum's Hotdogs. I don't know if their years of operation overlapped at all though.