The first Model G I ever saw was the one that they were using at my daycare. I was about 3 or 4. The machine was probably from about 1965 and it had a power nozzle. I remembering being so amazed and all I wanted to do was watch them use it. Most likely I was probably the only kid there that felt that way. I can't remember if I ever saw the bag door pop open. I just remember them working on the power nozzle a lot probably because it would get clogged often! Later, my aunt had one (no pn) and my sister's mother-in-law had one (again no pn). So later on around 2003 somehow I managed to acquire a Hospital G with a power nozzle off of eBay. It was in pretty good shape and I enjoyed it thoroughly. I remember friends and relatives growing up most of them had Electrolux's 1205, Golden J's, Super J's, and my favorite was the Olympia One. That would be so cool to use a CB to clean your whole house from top to bottom. I have used several different models of those also when my sister and I would clean a church together when I was about 9.