Kawai  SC (30?)

I know from a 1969 catalogue, the 2 pickup version is the SC60 but I'm not sure the number for this one?

As well as the Silvertone on sale in the US, I have now found that Rose Morris imported them into the UK and called them "Top Twenty" (with a little round plaque put on the headstock - but there is no sign of one ever having been on mine?)