Well, I've finally extracted it from my Mum's shed, and transferred it a hundred miles to mine! Much fun was had getting it into the car - I had removed a seat in preparation - when I discovered that it wouldn't go up the ramp forwards, so had to go in handles-first. I'm not sure it will be going to many rallies as I don't think SWMBO will be very happy sitting with a handlebar either side of her bonce.
It's an Allen Scythe TS (I think - I have to say that I'm not convinced that the forestry guards are the correct item, given the rivets), and it's a non runner. I had it running a shade over 20 years ago, and actually cut an acre or so of grass with it (the stupidity of youth!) before I ran out of weekend. One of lessons I learnt was that they are indeed ****ing lethal if you do not have your wits about you - gave myself a coupe of scares, not being used to finger bars hiding in long grass.
I suspect from the absence of compression that the No 1 issue is the one I had back then, which is that the exhaust valve kept sticking - easily fixable by removing the valve stem cover and glaring at it! Whether I get to it any time soon will depend on house... garden... allotment... Atco Standard... but I will have to remove the cowling whatever as it seems to have picked up a great deal of old straw and the last thing I want to do is set it on fire.
Incidentally, yes that is a spare cutter bar I've propped it up with (it wouldn't fit through the shed door, or in my car, with the blades on) - would you believe it is twisted? What on earth did the thing hit to do that?