Hello everyone, Just grabbed a black slate clock. It was retailed by J. W. Benson (Ludgate, London). Through the movement I believe it's a French movement wit bell striking. At the back there is a stamp of AD. MOUGIN DEUX MEDAILLES with no series 41278. If anyone can share any information about the movement like date of manufactured is really appreciated. I want to ask about the suspension spring because I need to replace it with new one. A bit weird with original suspension spring that came with the clock (got bent and a bit twisted) because it's formed with a piece of plastic. As I know it's normally made with a piece or 2 piece of steel. The question is which one should I buy one piece of steel or 2 lines (pieces) type of suspension? Or dimension is more important? Below are some of photos. Thank you.