Wadhams Gas Station?
At least, that's what I assume. June 2001. I have no clue where this was.
ETA: It is/was somewhere south of Mitchell Street & 13th, but north of Becher & 15th.
My confused memory told me that this was located here, but memory is a fickle and flawed thing. Oops.
This makes four Wadhams that I know of in Milwaukee, included the dismantled one stored on the WI State Fairgrounds.