As the stamps were produced without the owner's permission, they are regarded as bogus.
Niger uranium forgeries | Royal Philatelic Collection | American Philatelic Society Hall of Fame | Ireland Shakespeare forgeries | British Library Philatelic Collections | American Philatelic Society | Singapore Philatelic Museum | Royal Philatelic Society of New Zealand | Philatelic fakes and forgeries | London Philatelic Exhibition 1890 |