Re: As simple as a dead battery?
You have a very dead battery. It would be a miracle if it made the engine turn over on 11 volts.
By the way, if your clock is the original one, you may want to disconnect it while you play with the battery. A low voltage may cause the points to stick and burn the winding coil, which I believe is a major cause of these clocks failing. The high voltage from the battery charger would not be beneficial either, so you'd better disconnect the clock or remove the fuse.
#1: 67 RS ragtop, Yellow, 230, 3 speed manual, manual everything, sold long ago, sorely missed
#2: 67 ragtop, White, 327/210/PG, 12 bolt posi, front discs, power all, tinted glass, metric dashb'd, tilt wheel, remote mirror, custom interior, clock