I have two, a Beseler CB7 which is the main enlarger I use for my 4x5 work. I have lots of lens and boards to go with it so I use it for other formats as well. I also have a Beseler 67C, which is the enlarger I bought 30 years ago and is mostly in storage these days. I was just given one of those portable Russian enlargers in a suitcase. I wont use it other than maybe to do a couple of prints to see what you can get out of it.