The ridged plates are British, the flat plates are Canadian.
They doubled up as blanking off plates for the headlight buckets. They had holes to fit them in the headlight buckets and holes to fit them elsewhere when a second headlight was required. Compare with Niels’ example.
Of course when war progressed things got mixed up and troops used whatever was available from stores.
H.
__________________
Regards,
Hanno
--------------------------
|