This is a copy of the original Instructions for the Simplex Model T-10 Time recorder. These instructions are for model TC-10 but I believe they are basically the same for all the different T-10 models. These instructions detail how to set up the mechanical clock and how to make settings on the recorder (puncher) unit to synchronize it with the clock. They do not cover an electric clock. I will send you the paper copy and a pdf file by email if you want.