Subject: Petroleum industry and trade

Collection of four documents pertaining to the Victoria Rock Oil Company of Canadian West, 1865. Two of the documents are letters signed by Isaac Levy selling his interests in the company, both bearing revenue stamps. The documents relate to Philadelphia, Pennsylvania.

One-cent black/buff Liberty postal card (Scott UX5) mailed from San Francisco, California to Roseburg, Oregon on April 15, 1881, addressed to S. Marks. The card features a duplex cancellation with a barred elliptical killer. The verso displays a printed advertisement for Haas Brothers' Safeguard Oil, highlighting its 150-degree fire test and price of 22-1/2 cents per gallon.