The descendants of Ferdinand Rudolph Hassler have loaned a collection of the first Coast Survey Superintendent's personal instruments to the National Institute of Standards and Technology (NIST). The instruments are displayed in the lobby to NIST's Red Auditorium. The NIST Fabrication Technology Division has replaced missing parts of the Hassler instruments with historically accurate reconstructions. As well as being a geodesist, Hassler was an accomplished meteorologist. Because of Hassler's dual occupation, the Office of Weights and Measures was originally part of the U.S. Coast Survey before being transferred to NIST, then the National Bureau of Standards, in 1901. Hassler is, thus, seen as a founding father of NIST..
Fabrication Technology, Hassler, instrument maker, optical shop, Scientific instruments, Survey of the Coast, weights and measures
Measures of Hassler at NIST, Rittenhouse
(Accessed December 10, 2023)