not quite, though close. Rather, reviews of some topics for professional development. For example, I gave a link to Instagram, there are frames from filmstrips dedicated to the methods of processing pork, for the manufacture of smoked meat.
There are for example filmstrips about useful and harmful microbes in relation to agriculture.
About caring for the hooves of farm animals.
I can assume that they could serve as illustrative material for lectures and some training courses. I have seen references to pamphlets accompanying such filmstrips.