I'm relatively new to this whole lock picking thing (read: about a month) and I asked my dad if he had any locks laying around I could practice on. I've read through some threads on what are good beginner locks to start with, but I figured anything free was worth at least tinkering with. One of the locks he gave to me is this Corbin lock:



There aren't any model numbers or anything that I can see. I was just wondering if anyone had any insight into this lock. I was able to pick it, but I've never dealt with security pins and it felt like maybe there were a few in there. I had to fool around with reverse tension and things to get pins to set.
P.S. This is my first post to the site, and I wanted to say thank you to pretty much everyone for helping me, albeit unknowingly, getting started with this hobby.