"Also CR on the lower left rear of the crankcase, though is not as certain ( not all cases were stamped ) as "CR" on the cylinder head. HTH"
you basically cannot see the crankcase "CR" mark with them installed in the chassis, as soon as normal RGS heads ran out and there could no longer be confusion at the factopry, the "CR" stamp (on the head) was dropped, this mostly applied to late SFC1000's but could also apply to special order Corsa'a, at least one late SFC1000 was converted to Corsa spec, at the factory immediatley before delivery, because Moto Laverda cocked up and built one for a travellor when in fact he had asked for a Corsa, that one I beieve was 3124, but memory fades and cant be arsed to look in the files., Slaters were also selling supplying/fitting "CR" heads when new heads were needed due to damage, some of these were stamped, some not, as the time of delivery would dictate, their could be triples out there with CR heads and the owner doesnt even know it, I discivered one such bike where the owner had bought a brand new head (was surpised he needed new valves as well at that time) but he didnt know what he had got fitted until decades later.
CLEM
