Nice gun.

The grips are not Cokes.
They are merely the normal, non-relieved Walnut Target grips that would fit right in with a 1952 gun. Nothing should be written or stamped inside them.

Note also that the gun has a Target Hammer with a standard trigger. That was also commonly seen around 52-53 before Target Triggers came out.

Two distinct possibilities:
A. - the letter is wrong. This would definitely be worth asking about.

B. - they sold even slower than we thought!

I really tend to think the letter got crossed with another gun. Roy KNOWS K 136XXX would be a FIVE screw!

__________________
Regards,
Lee Jarrett