I know this is a long shot, but does anyone have a photo of (preferably the inside of) a Barron's double-acting tumbler lock?
I need a creative-commons or similarly licensed photo, eg I can't just rip one off the net, nor can I simply grab one from this forum unless the user has explicitly given permission. If anyone has one and would be happy for it to be used in a presentation, I would be ever so grateful.