I only wish it was mine. The pre-72 Agent photo is one I found on the web when I was trying to put together some info on my own Agent, a mid-80s style like ctc's. As far as the frame goes, you're right, the Agent was simply a Cobra with a tad shaved off the butt and wearing slightly smaller and thinner grips. It's all of 1/2 ounce lighter than the Cobra, which hardly seems worth it, but I guess the smaller handle made it more concealable under those 1960s trench coats.