I'm not sure exactly what year Head brought the Master to market. The combination of a higher end ski and a Marker cable binding says mid 60's to me.
One of our "veteran" members will hopefully chime in with a release date of that ski model, which will help narrow it down further.
Hi Ken, welcome to Epic. I am old (thanks Rossi) and skied the Masters for Several years. Believe that the Head Master showed up about 63, the Comp was 61.
To date yours look at the bindings too. The earlier marker toe pieces were flat on top and had an external centering device/spring metal/catch in front. Around 66? they got rid of the catch in front and curved the tops of the toe pieces. They added springs in the back of the cable bindings about 65 too.
Think the Master went away about 70 or so. I skied mine till about 69. They were a good forgiving ski, very nice in the day in soft snow. Hope that helped confuse the whole picture.