Nice collection. It looks like you might have a Yashika D or a Rolleiflex in your row of double lens reflexes? I used one in high school. Great medium format. Is that a Hasselblad 4x4 on the bottom? Whatever brand it is, those are exceptional. I got to develop a bit in high school. About the only way nowdays to develop and print is to have a darkroom at home. Not too many photo labs that develop any more. Everything's digital. (and that's fun too)