2018-09-212018-09-21http://172.16.52.76:80/cdm/ref/collection/coll15/id/76https://hdl.handle.net/20.500.12111/1629Pin in the shape of an elongated rectangle that likely made of silver. The pin's design forms the initials "HD" in block letters. On the reverse of the pin, the number "835" is stamped in three places. It seems certain that the pin belonged to Helen Dukas, who was Albert Einstein's secretary for over thirty years.6 cm. (length)PinPhysicalObject