I'd forgotten Grimshaws even though I once owned two of them! I had a six string folk acoustic, bought about 1958, and a 12 string bought a couple of years later. I bought both at Don Strike's, in Westbourne, Bournemouth. In 1964 I used the six string as the deposit for a new Gibson SJN Country and Western (which is still my main guitar) and sold the twelve string around 1967. They were quite good instruments but a bit heavy.