I'm new on the site so saying hello out there! I was wondering if anyone
knows what the correct stamped two letters are supposed to be on the front
pad of the master cylinder for a 70 SS disc brake nova? Thanks.

Welcome to Team Nova. I am sure some one should beable to help you. Shifty4 may have a answer or Big Dave

Thanks Geoffry, I'm doing a restoration and would like to put the right one on it.