What Kind Of Padllock Is This? And How Can I Pick It?

There is a certain knack to opening these. You need to hold it one one hand, applying pressure as if you were trying to force it open, but don't use that much pressure. Now, start on the tumbler nearest the jaws that you are applying pressure to. Keep pushing quite firmly, and rotate the tumbler slowly until you feel something give' . There are three bars keeping it locked. When you get the first one right, there will be just two. Try the middle tumbler next, do the same thing, rotate it slowly until you feel something 'give'. Finally do the same to the last wheel. This should be easier. It might open now but if it doesn't start again at the first one, without moving the other two. Try each number in turn, it might open if not just to decide which number offers the least resistence. Same again with middle one and hey presto - it'll open.