Lekobird here............... the Axial Leko was manufactured from 1979 to about 1982. Series numbers 2204 thru 2124. the "short" sleeve accomodated the 2204, 2209, 2212, and the 2213 (w/iris). the medium sleeve was for the 2216 and 2217 (w/iris), and the lonnnnnng sleeve was for a single 6...