Check the listing for details. 1960s C.P Clare & Co. ~ Bulletin No. 121 ~ Type 11 springdriven Stepping Switch. Condition: Used. Listed at 19.99 USD. 1960s ~ Bulletin No. 121 ~ Type 11 springdriven Stepping Switch Clare, Inc., formerly CP Clare Corporation, was founded in 1937 by Carl P. Clare to provide high-voltage switching technology to a growing telecommunications market. Over the past 70 years, Clare has built upon this high-voltage expertise, evolving from a manufacturer of electromagnetic components to a leader in silicon solutions for the last inch of the last telecommunications mile. Clare, Inc. designs, manufactures and markets optically isolated solid state relays (OptoMOS), mixed-signal custom ASICs and ASSP integrated circuits (ICs) for the telecommunications market.In June 2002, Clare, Inc. was acquired by IXYS Corporation and is now a wholly-owned subsidiary of IXYS. Comes form a former missile engineer for the US Air Force.Was employed under this position during 1950's and 1960's, may have continued on afterwards, all the paperwork I have are from that period. Superb condition. Well cared for. pages are clean and crisp. Looks like it could have been printed recently not 60 years ago