I'd say that they would have to be earlier than the date you've suggested, this is based on the fact that they are showing the Solid Deck 45's with Kirby engines and I thought we'd pretty much come to the conclusion that twin railers were already around in the latter part of 1973, maybe early 1974 for the larger machines ?
Cheers, BB
I live a 24 Hour lifestyle, but every now and again I seem to fall asleep, well at least that's what my wife tells me.
Yeah, I missed that. It would be early 1970s. I remember that catalogue distinctly. I worked after school at a mower shop so that I could buy a SB45 14"(with Kirby) from that very catalogue.