My Uncle and Cousin were making and providing props for the movies when circumstances enabled them to get into making movie prop guns and weapons. This was shot in 1984 with a Panasonic SVHS camcorder, then edited (one of my first) with Liquid 5.6 in 2005.
I had some weird ideas about things and thought I would put pictures on the wall as you descend into the plant...all those pictures are weapons that they made, Rambo's exploding arrows and rocket launcher, etc. If you stop the video, you should be able to read the fine print (maybe not on vimeo).
If you look at the shelves in the background you will see many, many molds - the guns are in such detail you can read the writing on the rubber, serial numbers and so on.