Take the distributor cap off. Turn the engine till the points are open. Take the high tension/voltage wire from the center of the distributor cap and hold it close to the engine etc. Using an insulated handle screwdriver make contact between the to ignition points. Should be spark there and at the high tension to engine.
If no spark, remove the wire from the stud connection at the side of the distributor and Then strike the wire to the stud and with the points open if there is a spark you have a short circuit either at that stud insulation on the side of the distributor or with the points or condenser or the flat copper conductor that attaches to the stud and points.