Auction Series 257-264 in Zurich Day 3

1898/29: Small selection with 70 unused semi official airmail labels issued for various aeronautical events at the beginning of the 20th century, including vignette of 'Exposition Universelle de Dijon' (1898), 'Semaine d'Aviation Nantes' (14./21. 8. 1910) brown perf. mint block of four together with imperf marginal block of  15 imperf. of top left of sheet in blue (Cat.Silombra = € 1'800), further 'Grand Prix  d'Aviation Angers' (1917), 'Concours d'Aviation Dunkerque' 1909 and Bar le Duc (1910),  just to mention a few. A fine offer.
Catalogue 257: EUROPE & OVERSEAS