Frame ID

I’m still trying to identify the maker of this frame . The fork steering tube has R with 3 numbers below it , as does underneath the BB. Any ideas ? and I’ve already ruled out repco.

Could the ‘R’ stand for Reynolds, the numbers being the type of steal?
Did frame builders put the type of steal used?

Thats what I thought but the numbers are 152

REMINGTON STEELE? :smiley: