Starter not engaging

[dcorbitt77@comcast.net]

On Saturday I took my '69 2000 for a spin, ran fine. Sunday morning, I wanted 
to go for another spin and no joy. Battery is fully charged (12.53 volts), 
electric fuel pump chugging away when the key is ON. When I turn the key to 
START, the fuel pump shuts off and nothing happens. Battery voltage remains at 
12.53. Anyone have some helpful advice on this? I suspect I'll be inspecting 
the ignition switch tonight or the wiring to the starter relay.

Thanks
Dave C
Summit, NJ