Group of five commemorative covers honoring various occasions, each signed in blue felt tip by Margaret Thatcher. Includes: one with an inset medallion honoring the birthplace of The Queen Mother; one honoring King Henry VIII and his six wives; one commemorating the investiture of the Prince of Wales; one honoring the Post Office's definitive values; and one honoring the 1989 royal visit to Guernsey. In overall fine to very fine condition.