Scanned from a 1940s postcard in Mama's Cedar Chest
"THE FOUNTAIN OF YOUTH is synonymous with ROMANCE, ADVENTURE, DISCOVERIES, A NEW WORLD, FLORIDA! Hidden away among the century old oaks, cedars, and magnolias, the fabled fountain of Don Juan Ponce de Leon still bubbles forth, as thousands of people are constantly finding their way to this National Shrine, following the footsteps of this famous Spanish explorer who first landed on the mainland of North America only a few hundred feet away, A. D. 1513, in his search for eternal youth."
I have never seen another similar vehicle. The rider pushed the pedals down to move it and the seat raised and lowered as the rear wheels rolled.
Some time in the fifties. The chimney on the left indicates there is a coal fire in the furnace. One of my jobs was keeping the hopper full on the stoker. The house had a flat roof (complete with a sundeck) until the early seventies. The local paper published a schedule for viewing satellites in those days. I watched Sputnik from that deck.