My D14 Bantam is 4 speed with points and coil ignition. Swing Arm rear end.
Yes Phelon & Moore is correct as is the 100 being 600cc.
Mine was also attached to a D/A sidecar, but I got it well lined up and it handled fine. Then I am prejudiced, I like outfits! The Panther also had a "half compression lever" on the right side of the crankcase. Lift that and the bike cannot kick back. Forget it and you could soon be airborne! I used to use sidecar tread tyres on it which have a much flatter tread than normal bike tryes.
I have only been to Fowlers once, about 12yrs ago, for some Yamaha XV parts.