1966-70, the mint and used collection with many issues complete, including 1967 (20 Apr.) Long Live the Invicible Chairman Mao's Thoughts with se-tenant strips of five (both) of Mao's texts unmounted mint and singles used, 1967 (1 May) Long Live Chairman Mao both series unmounted mint, 1967 (23 May) Anniv. of Talks at Yanan Forum mint, 1967 Long Live Chairman Mao 4f. to 52f. mint, 1968 Revolutionary Literature and Art unmounted mint, 1967 Poems of Chairman Mao the three series unmounted mint and used, 1968 Directives of Chairman Mao used, mainly fine to very fine. Cat. $4240. (219)