The first really complete ones, anyway. There have been a few posts of incomplete and 'bodged' ones in the past here, but that's all. Pope also made push reel mowers, and their first power mower was a motorised [petrol or electric] version of that. These I'd say, were the second generation. By 1965, Pope had gone to wind-up starters.
A small amount of discussion on these rotary valve Popes on this thread:
https://www.outdoorking-forum.com.au/forum/ubbthreads.php?ubb=showflat&Number=51035A couple of pics of an incomplete one, that shows the original colour well:
https://www.outdoorking-forum.com.au/forum/ubbthreads.php?ubb=showflat&Number=12396 These were around 1958-early 1960's vintage. My old man bought one around 1966, and it was secondhand even then. I still remember that beast; it could be a bit of a bear to start, but was quite grunty.
No idea about model designations, but this crew have a few instruction manuals for sale;
http://www.ozwrenches.com/manuals-mowers.htmA search on the National Library's 'Trove' site for Pope mower ads in that timeframe will likely find some ads with line drawings.
Here's one:
http://trove.nla.gov.au/ndp/del/article/101370657 And one with some pics:
http://trove.nla.gov.au/ndp/del/article/103071715
