Would make some sense that when they first produced the new piston ring system they were not yet set or possibly thought through that they would now offer two oils called 1 & 2? They couldn’t mention in the instruction something they didn’t yet offer and calling for oil would lead people to Mark 1 Neatsfoot. Seems so odd they just dropped the oil instruction since it is essential for proper functioning? Kind of makes me wonder what the earliest serial number is on the Target? Someone here mentioned they had 14154. Got Bruce’s book on the way to feed my current need for Webley trivia. Drilling down on this stuff becomes a desease with no cure! Lol
PS: maybe they didn’t mention any oil because at that time they would of had to say, 30 weight motor oil: kind of messes with their future selling of their special number 2?