San Francisco in 1930. "Goodyear tire retreading." Equipment by Western Dri-Kure. Third photo in this series. 8x10 nitrate negative. View full size.

New Jersey circa 1905. "Tent life at Ocean Grove," the Methodist summer retreat also seen here. 8x10 glass negative, Detroit Publishing Co. View full size.

Marin County, California, circa 1921. "Mount Tamalpais Tavern and Gravity Car with REO auto." 6½ x 8½ inch glass negative. View full size.

September 14, 1932. "Goodyear service station, San Francisco." Second in this series of Goodyear-centric photos. 8x10 inch nitrate negative. View full size.

1933. "Mrs. Mary Benson and guests." Depression? What Depression? 4x5 nitrate negative by New York society photographer Arnold Genthe. View full size.

Circa 1904. "The Philadelphia Bourse, Fourth and Ranstead Sts." 8x10 inch dry plate glass negative, Detroit Photographic Company. View full size.

California in 1918. "Chalmers touring car on dunes." Along with a reminder from the Sparton auto-accessories company to sound your horn -- branding disguised as a safety message. 5x7 glass negative by Christopher Helin. View full size.

New Orleans circa 1925. "View of a courtyard." Evidently the rear entrance to Club Firestone. Note the zigzag extension of the downspout under the patio flags. Nitrate negative by Arnold Genthe. View full size.

Washington, D.C., circa 1926. "Eastern Dispensary, Casualty Hospital." Where they'll fix you up good as new. National Photo Co. glass negative. View full size.

"Gurley-Lord service station, San Francisco, 1929." One of eight 8x10 negatives showing rubber-related activities at Goodyear tire dealers. View full size.

May 1937. "One of Max Sparks' children playing on homemade teeter-totter near Long Lake, Wisconsin." Medium format negative by Russell Lee. View full size.

"Grace's flowers -- 18 Sept 1951." In this latest episode of Minnesota Koda­chromes the outlook is, regardless of the weather, Sunny and Warm. Color slide by Hubert Tuttle of his lovely wife and her beautiful flowers. View full size.

Denver socialite Ann Bonfoey Taylor with her oilman husband Vernon "Moose" Taylor and their sons among the aspens at the Vail ski resort in 1967. Medium-format negative by Toni Frissell for Vogue magazine. View full size.

        Steel magnate Charles Schwab's 75-room, $6 million beaux-arts chateau on the Upper West Side, completed in 1906, was razed in 1948 and replaced by an apartment building.

New York circa 1910. "C.M. Schwab residence 'Riverside'." 8x10 inch dry plate glass negative, Detroit Publishing Company. View full size.

    Latest entry in the Shorpy Concours of Complicated Contraptions.

San Francisco circa 1919. "Peerless tank truck." Last seen here, and a cousin to this Red Cross tanker used, to no discernible effect, to wet down streets during the influenza epidemic of the late teens. 5x7 glass negative. View full size.