Are quill stems available in different sizes?

I had mine replaced recently to bring the bars up and back a bit and I think they went too far. I can move them down easily enough but I'd like to try a little longer stem. I included pictures of the one I have which seems to work well. I like that you don't have to take the brakes off to remove the handlebars but I don't see any indication of who makes it. Does anyone know where these come from?

Thanks