In a series of booklets featuring UK botanical gardens, one of them, issued in September 1987, was dedicated to the “Mount Stewart” botanical garden in County Down (Northern Ireland). On the front lid of the booklet the name was misspelled as “Mount Stuart”. In consequence, the UK Post issued a corrected booklet in October 1987. Besides the correction of the name, there were a few other changes in the text on the front lid, otherwise both booklets are identical. 

Booklet with erroneous inscription

Corrected booklet