Please contact the contributing institution for more information regarding the copyright status of this object.
In E. F. Mueller Postcard Collection: F866.E23; PHOTO: CONTRA COSTA COUNTY: BLACK DIAMOND "Published exclusively for Regal Pharmacy, Black Diamond, Cal. by United Post Card Co., New York, N.Y."-on back. View of Main Street and buildings in Black Diamond, later known as Pittsburg. Horse-drawn carriages are seen in the street. 2009-3164. E. F. Mueller,
Photographs. Nonprojected graphic
1 photographic print (postcard) : col. ; 3 1/2 x 5 1/2 in.
Buildings--California--Pittsburg Streets--California--Pittsburg Pittsburg (Calif.)--Photographs Photographic prints Photographic postcards