Wilhelm Tempel discovered NGC 2067 = T I-17 in 1876 with the 11" refractor at the Arcetri Observatory. His position and rough tranlation of his description (in German) points to the very faint nebulosity to the northwest of M78. Harold Corwin lists two possible regions as the intended object - "a large patch of pretty low surface brightness nebulosity about 5 arcmin northwest of M78" and "a knot about 3 arcmin southwest, the brightest part of a long faint streamer pointed toward NGC 2064". It's possible that Tempel's nebula applies to both sections.

300/350mm - 13.1" (2/25/84): extremely faint, suspected reflection nebula 5' WNW of M78. Sighting uncertain as only visible fleetingly. [It's not clear from my description whether I observed the very low surface brightness circular patch NW of M78 or the brightest portion of the streamer pointing towards NGC 2064].

Notes by Steve Gottlieb