The National Center for Atmospheric Research (NCAR) was founded in 1960 in Boulder, CO, to support the university research community by providing large-scale facilities such as supercomputers, aircraft, high-altitude balloons, as well as a wide array of observing systems. NCAR's main machine shop has been producing instrumentation for field programs and experiments since 1963. Recently the NCAR Archives undertook an initiative to document the design, fabrication and use of instrumentation historically at NCAR. Few physical instruments exist after initial usage, however, owing to sheer size, deployment, or cannibalization of components for other instruments. This presentation will discuss NCAR Archives' collection of drawings, specifications, photographs, oral histories, and field project records to document this important part of NCAR's mission as well as the creation of an electronic database to bring it all together.