1969 - 2001, ** / o / cover, extensive, chronologically sorted inventory in 16 thick stock books and 5 First Day Cover albums, to to the years 1995 almost all issues consistent 2 to 6 time mint never hinged and 5 - 10 time used is existing, from 1977 interspersed with first day covers, postal stationery, fair letter and from 1996 almost only still used, enormous catalog value! ! !