Pump valves and sucker rod couplings, Axelson, Southern California, 1931

2 photographs of several pump valves and sucker rod couplings, Axelson Machine Co., Southern California, 1931. "Subject: pump valves & sucker rod couplings

193113602DW19310623136DW1931062313602ValvesAxelson Machine Co.JoeMcCarty