I getting parts together to put my 1972 Raliegh Supercourse back on the road. Over the years I have not been kind to the original quill stem and used a hammer to free it more than once leaveing dents on the top. I have looked on line and can purchase higher quality NOS stems that will look nice on the bike. I want to purchase the same size stem but don't know exactly how to measure the original. I assume that the angles will be close on most of the stems available. To determine the length of the stem do I measure from the center of the quill bolt hole to the center of the opening that secures the bar? Last night I did a rough measurement using a tape measure and came up with a little less than 95 mm. The original frame measurement was 21.5 inches for the seat tube (I don't remember any other measurement done in 1972). That stem size would seem a little short based on the 56 cm frames I now ride on.