#689, year 1979-1985, model 30AM/30AE/30AEM <br /><br />Take a look at this picture: http://www.marinshopen.se/guide/yambokst.htm <br />Try to find your letter at the red arrow. That letter can be very hard to read. <br />T=1979<br />S=1980<br />R=1981<br />Q=1982<br />P=1983<br />N=1984<br />K=1985<br /><br />I hope that helps.<br />/Bear