Happy new owner of a 581. Honestly, a 581 wasn't even on my radar. Had my sights on getting a 27-2 or earlier model 19, but nothing came up locally. I saw a 581 come up locally and picked it up yesterday. Good condition, certainly not perfect, but I plan on shooting it. I believe this 561 is an earlier model. Not sure if it's a no dash, but there is no M stamp...possibly not done on the owners behalf. Serial # AAH53xx. Could someone help me out with the ship date? Also, this is my first blued revolver. Is Ballistol ok for cleaning? Any further tips? Thank you all. I do a lot of lurking here and really enjoy the knowledge/help. Here's some pics: