>>148972511
https://www.youtube.com/watch?v=_Xns6ZDKxSQ
18:16

>Animation at the time, a majority of it, was a handmade art. There are 24 drawings per second, and each of those had to be transferred to cells, celluloid acetate. They had to be inked on the front, painted on the back. But on top of that, they had specialists come in with airbrushes to soften the color. Then they would have other people who would do dry bush. They would take a bit of color, and wipe that off on a cloth, and start to put it on, so you get a texture on it. Incredible stuff. For each frame of those sequences, it took an enormous amount of hand labor. Each cell, which was only 1/24th of a second, it took them something like three or four hours to do, with all those techniques.

https://desu-usergeneratedcontent.xyz/co/image/1715/27/1715271161101.jpg