Lot 41430 – 1976 Historic Castles set of three artist’s drawings in pencil, ink and watercolour

1976 Historic Castles set of three artist’s drawings in pencil, ink and watercolour, with same design as issued but with different values on two (9c, 15c and 30c), each affixed to paper with simulated perforations measuring 135x72mm, and each with reverse showing artist’s signature and handstamp, highly attractive set of essays for the specialist, ex Stephan Welz/Sotheby’s July 1992.