What casting number master cylinder was used on 1970 Cuda HD 11" drum brakes, No Power

[stat5]

What casting number master cylinder come factory on 1970 Cudas that equipped with the standard no power Heavy Duty 11" drum brakes?

Thank you for any answers.

 

[pschlosser]

casting #2225 601
casting #2660 809
casting #AANF
casting <none>
The top is the screw type with a bolt and bracket, and equal-sized humps. Note, the same master cylinder was used on both Power and Manual drum brake setups.