Hi Sir_Chook, the Model 17 Supercut was first released by Scott Bonnar in 1950....these were the Rolls-Royce of cylinder mowers in their day; with gears supplying the drive in the 'chain-case'.
The chassis for the machine was basically the same for the petrol and electric versions, the main difference being the front counter-shaft for the petrol machine carried the cutter clutch assembly and actuating arm/handle. wink

Different engines were used for the petrol machines during the production run and consisted of Villiers 2 and 4 stroke engines.....the front counter-shaft could be configured by the addition of different sprockets for the chain driven versions or pulleys, (usually dual) for the belt driven versions and could slide along the shaft and be secured in any position to suit the situation.

I was lucky enough as a young kid to see these machines being used at our family home in Brisbane, our local gardener used to arrive on a 1942 WLA Harley-Davidson with a side-car containing the Supercut and all his gardening tools...This Harley even had a reverse gear!
His Supercut was almost new when I first saw it, and was painted in the same colour scheme as the one that I purchased second-hand in 1977.

AS far as I know, the original SB colour scheme never changed over the production run....but as a popular machine, were refurbished by different mower repairers over the years, and repainted in various colours.
From my Scott Bonnar archives, here is an advert from the early period; before the move to Thebarton, South Australia...
[Linked Image]
One small detail change I do notice from this illustration is, that the names on the 'chain-case'; Supercut and Scott Bonnar Ltd. Australia, the background in-fill colour was red on all the machines I have seen, but that the attachment knobs are green as illustrated.
The chain-case cover was highly polished alloy. wink

The original colour is very close to Deep Brunswick green, and the red very close to Killrust epoxy 'Delicious Red', available in spray cans.
The catcher logo decal was the early 'flag' type that is available as a reproduction. wink
Hoping that this info helps,
cheers2

Please do not PM me asking for support. Please post your questions in the appropriate forums, as the replies it may receive may help all members, not just the individual member.
Kindest Regards, Darryl grin