Many thanks to Gorney on the Pama forum for pointing out a June 1968 copy of Swing Magazine on the web in pdf format. Swing is a bit of a legend as it was the main publication to feature Reggae at it’s birth in Jamaica.
There were dozens of other issues of course, if any kind soul can make them available then please get in touch!
The ad with Long and Short of it features Kew and Ossie DaCosta. Kew is the Long one.