Item ID #
Herbert H. Hall
Manufacturer and Distributor
D: Ayerst Laboratories, New York, NY
US: 3,323,520; filed 10-5-1964; granted 6-6-1967
22mm outer diam.
Three laminated stainless steel flat rings, each 0.001" thick, surrounded by a stainless steel coil spring. Green Nylon cervical thread. The photograph here gives the device a copper tint. This is a result of the lighting. The device is shiny steel.
Physical rights to the device and the photograph of such are retained by Loma Linda University. Copyrights and patent rights are observed in accordance with U. S. copyright and patent laws.
Intrauterine Contraception; Intrauterine Devices; Metal ring IUDs