OK, your "old fashioned"

657s were made in 2 5/8", 3" and two different 4" barrels (heavy and MG).









Model 57s were offered in 4" blue or nickel. I have a blue, but no individual
picture of it. It is here in an old 41 Magnum group photo.



There is also a 4" model 57 Mountain Gun, but it has a lock.



Then if you are looking to carry all day, there are the 4" 357PD and 2 1/2"
357NG. Being newer designs these also are shipped with the lock





Sorry that I can not provide any model 58 images, they just ever interested
me as firearms