These grips look a lot like Anderson grips, but they came in white too! Maybe they were. Anderson grips are probably your best bet for period correctness.
That "live" rubber is the best ever made. These pegs are long wearing and never dry out or crack apart. Unlike the offshore garbage that has been reproduced for Triumph pegs and kicker rubbers for the past couple decades. That stuff fly's apart after one kick!
The Show & Go Cycle Shop is my private two car garage located in the foothills of Central CA. I am building everything from early Desert Racers - Street or Strip Dragbikes - 1960's Style Show Bikes - to 70's style Radical Choppers. Specializing in Pre-Unit construction 650 & 500 twins and vintage aftermarket parts identification. Buy, Sell, Trade, parts made by Webco, MCM, MCA, Bates, Flanders, Wassell, Superior, Routt's Cycle, etc. Period photos wanted. If you have stuff for sale related to what you see here email me. I will post pics of my projects from time to time and keep an ongoing thread of pictures and old magazine articles featuring modified British Motorcycles from 1946 onwards.