Beats me, but figure that it's not Large Format unless it takes a pack animal to haul the gear to where you want to make the image (you know like Curtis and O'Sullivan did - with those BIG glass plates, boy would I like to have one of those negatives)
While you may find an occasional use of the term "Large Format" in older literature, the use to describe 4x5 and other sheet film sizes didn't come into general use until the 1980s, and "Ultra Large Format" until the 1990s. Probably a convenient necessity for such magazines as Photo Techniques and Darkroom Photography when using these sizes became the exception rather than the rule among photographers.
After reading the ULF forum 4x5 is starting to feel quite small, MF is feeling even smaller, and 35mm is teeny-tiny. My father-in-law was the last 110 user on the face of the earth... I can't even see those negs.
Maybe it's my eye sight... maybe it's an inferiority complex... who knows, but there's some alteration of perspective going on!
Speaking of 110 format, I remember "PhotoHuts" and the 110 point and shoot format becomming popular roughly at the same time. That's the first time I remember hearing the term "large format" myself. Late 70's, early 80's was it?
It's amazing to me how long photojournalists used the 4x5 Graphics as opposed to the smaller formats that were available at the time.
These smaller cameras would have (and eventually did) make press photography much easier but these hardy souls stuck with the 4x5 format to ensure the quality of their work. Hmmm... these guys would make great....APUGgers!
The last Crown Graphic was built in 1973.
"A certain amount of contempt for the material employed to express an idea is indispensable to the purest realization of this idea." Man Ray