Ignition

This is a key blank (for you to have cut to your car's key) limited access. 1966-1980  Silver Shadow, T-series, Shadow II

This is the master square head key blank.  The master key blank is known to open all locks.  This is a "Yale" key blank brand. From 1970 VIN 9001 up to 1980  

This is the master square head key blank.  The master key blank is known to open all locks.  This key blank is a reproduction. From 1970 VIN 9001 up to 1980