604 DOWNTOWN PITTSBURGH, PA. SHOWING THE POINT WHERE ALLEGHENY AND MONONGAHELA RIVERS FORM OHIO RIVER COPYRIGHT AERO SERVICE CORP., PHILADELPHIA, PA. 5A - H1504
This tract of 1½ square miles probably has seen more history made, e are in more dramatic action, than any com- the country. Over it have flown the flags of three great ON, PITTSBURGH, PA. nations, the banners of two states and the NETTA EP 10 pennants of unknown numbers of Indian tribes.
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