1963 had a PCV valve. 1961 was the first year in California only, 1962 for all the other states.
Here's your picture modified.
Just unscrews. jwko's picture is from later years, when the PCV got moved to the valve cover.
P.S., Someone painted your motor the wrong color. The valve covers and air cleaner should be gold, and the rest of the engine should be black (except the carb, throttle linkage, fuel pump, belt driven accessories)