For sale vintage and rare Balkan Bulgarian Airlines book "Tracing the Routes of the Civil Aviation". In very good condition, never read. Age related yellowing, marks to the covers. Please check photos.Year: 1977 Language: Bulgarian Size: 21x15 cm (8.25"x6") 96 pages FEEL FREE TO EMAIL ME WITH ANY QUESTIONS YOU MAY HAVE. Shipping folded by tracked airmail I combine shipping |