1966 British Birds (ord). Block x 4 with double red printing and reddish-brown colour shift. Spectacular and very visual error. Fine and fresh unmounted mint, couple of gum wrinkles. The item “1966 British Birds (ord) spectacular printing error. Fine unmounted mint” is in sale since Tuesday, August 17, 2021. This item is in the category “Stamps\Great Britain\Elizabeth II\Pre-Decimal (1952-1971)”. The seller is “wickham_stamps” and is located in Bromley. This item can be shipped worldwide.