Keeping chronological, this is my 1952 Ariel VHA 500. 500 cc single jug. 3 speed trans. All of the brit bikes I have shift on the right side, brake on the left, throttle is on the right grip. Ariel is famous for their 'square 4'. This was a sporty version street bike. A bit fancy for the time. It had full suspension, plunger shocks in the rear, tube shocks on the front, AND springs on the seat! Clipped to the swing arm on the left side there is a long tube, that is the tire air pump. Most of the old bikes I have run across had these. On the right side is a triangular looking case, that is a tool kit not an oil tank.
Thanks for looking, I have one more 'old' bike, a 1967 BSA Lightning, but its buried deep under PILES of 'crap'. Im not sure I have the oomph to dig it out and photograph.