The bicycle in question, ripe for a complete restoration is a 1954 Rory O’Brien racing bicycle. My father purchased the frame and forks for £17.10s unpainted. The frame was manufactured from Reynolds 531 tubing and all the tubing was brazed
Grease nipples are manufactured for use where the article to be lubricated can not be broken down easily thus upsetting fixed running clearances or difficult to reach parts. I have had a look at some early i.e. 1920’s nipples from a KTT Vel