It was smallish book published in 1940. Apparently, there was a whole series of these books about film production. It has about 65 pages of print on heavy newsprint paper followed by about 20 pages of B&W photos on semi-gloss paper. Many of the photos printed there don’t seem to have appeared in many other places. (Though I’ve found one or two lately on the internet.)
The pictures are almost wholly those of Pinocchio’s production.
I’m posting a few of the pages. There are several to do with animators. The only picture posted here shows Fred Moore at his desk (cigarette in hand). The model maker below him is pictured with a marionette behind her. That marionette was merchandised; I have one. These were pre-plastic days. It’s made of some wood pulp product, very interesting to me. There’s also an odd studio photo of Disney manipulating the same marionette.
(Click on any image to enlarge.)