The ornamental design for a combinedstool and periscope, as shown and described.
FIG. 1 is a front elevational perspective view of a combined stool and
periscope embodying my new design, showing the upper periscope aperture
and the angularly disposed mirror within the hollow column in alignment
with said upper aperture;
FIG. 2 is a rear elevational view of the stool showing the lower periscope
aperture and the angularly disposed mirror within the hollow column in
alignment with said lower aperture.