I know its going to be a struggle to get any.
I have a few of these CS712 padlocks, new in boxes with codes relating to the keys (no cards).
I was told by ingersoll that these were probably made for N/American market a few years ago.
It would be criminal to scrap them so I'm putting them up on ebay but I would rather get keys and have them working.
I've even thought about getting the welder out and making a bit of lock art out of them.
