The close-up shows the location display at the back left, then come the three speed indicators and finally the 'fader open' light. The drum at the far right raised and lowered the arm. The drop start key is behind the wooden block handrest. The turntable plate had perforations around it's circumference which, with the neon lamp, acted as a strobe for speed setting, the control for which is at the front centre of the 301.
In later years presentation styles required faster starts than the drop start method could achieve, and the use of slip-mats became common. The turntable plate was lowered and rotating, the disc held stationary by the mat as can be seen in the final photo.