I'm not sure if this is the right place for this but I thought I'd see if you guys/gals could help me out. I'm fairly competent with removing/installing locks and handles but this one has me stumped. I have no idea what the model number is or what brand it is. It is on a door from a building that was recently purchased. Here are a few pictures.
http://i.imgur.com/60sPI.jpg
http://i.imgur.com/8kfTc.jpg
There are no screws and it's not immediately apparent as to how the casing comes off.
Any suggestions?
Thanks in advance!