Can you post a couple of photogs Bernie, when you get the chance of course 
Elgin & Waltham had some great eye candy designs, some of them you can get lost in, like looking down a well and feeling yourself getting pulled in haha
I wonder if they, the demask crew, were given a design to follow or if it was….. Here ya go boyz perform your magic based on the word….. Leaf, for example lol
Some of the designs have actual destinations, spring, winter, cascade etc
Whatever it was, they really had to know their equipment and the effects it could produce. I shudder to think about the mess I would make if i was given free reign lol