I want to record all me serial numbers. Where are they on my lenses? I can't see any. Are they even there lol? I have all Canon lenses except one. And I see one number on the mount but thats it. I dont know where the number is for my Canon AE1. I see numbers on the top with the 'film advancement lever' (ii think). Is that it? I thought it was on the bottom of the camera. There's nothing there. I know my camera has one, I just dont know where. hehe. I got the one on my light meter, FinePix A303 and my flash. I think that's it. I should prolly record everything I have in general just in case. How often do people really think to do this and it helps? Thank you!