Same reference as last post. ATC size in my (home made) fanfold canson paper sketchbook. My gooseneck lamp finally died, I declared it dangerous after it blew up two lightbulbs: Here is my last drawing of it, I've done it many times for scavenger hunt. It has served me well. I had to pull out the electrical parts so that Mom (who can't throw anything away, I did try) won't blow up any lightbulbs or blow the house fuses.