Sorry KK, nothing that early. No wait, I have one. A very beat up copy of the Giant Superboy starring the LOSH No.208 from April 1975.
Except for a few odds and ends, my modest collection starts in Jan. 1983 with No.295, part of the Levitz/Giffen era. From that year I have 295-297, 299, 302-306.
I also have:
Annual #2, 1983
No.4, Nov 1984
No.8, Mar 1985
Annual #2, 1986
No. 43-45, Feb-Apr 1988
No.1, Nov 1989
No.12, 13, Oct, Nov 1990
Legionnaires No.1, Apr 1993
No.90, Mar 1997
No.92, May 1997
No.99, Dec 1997