1972-73
1976 Big Thompson Flood
1973
Mark 1988
Mark 1985 - 2
1971-72
Mark 1984 -2
Mark1993
Mark 1984
1970-71
1981 #1
197???
1984 Marble, near Aspen
1969-70
1967-68-69
1965,66,67
1965 #2
1965 #3
1965 #1
1963-1964 #1
1962 #3
1962 #2
1961-1962