Following along on the previous image, this card shows the swimming pool at the same establishment seen previously from the front: the Manor Motel.
The description states:
50 Mi. S. W. of Chicago
U. S. 6 and 66 — JOLIET, ILL.
48 Units — Channahon, Ill.
Area Code 815 — 462-5385
Member The Best Western Motels Recommended by Duncan Hines
–A visible safety barrier has been installed, presumably to separate swimmers and non-swimmers. The diving board is still in place, but most pools have since removed them as a potential liability.
This image likely dates from the 1960s.