Korean Philately Vol 17-20

Korean Philately Vol XVII No. 1 (May 1968) Korean Philately Vol XVII No. 2 (May 1968)
Korean Philately Vol XVII No. 3 (August 1968) Korean Philately Vol XVII No. 4 (November 1968) (note: photocopy, not original)
Korean Philately Vol XVIII No. 1 (May 1969) Korean Philately Vol XVIII No. 2 (May 1969)
Vol 18 No 3 (1969) Korean Philately Vol XVIII No. 4 (November 1969)
Vol 19 No 1 (1970)Vol 19 No 2 (1970)
Korean Philately Vol XIX No. 3 (August 1970)Vol 19 No 4 (1970)
Vol 20 No 1 (1971)Vol 20 No 2 (May 1971)
Korean Philately Vol XX No. 3 (August 1971) Korean Philately Vol XX No. 4 (November 1971)