South America, Waterlow Specimen Stock, 1900-50's. Many hundreds in single and block format arranged on large stockcards; various countries and issues including Costa Rica, Peru including 1896-1900 Issue blocks with various specimen overprint varieties, similar Brazil 1906-11 definitives, Guatemala, Colombia, Ecuador including telegraph issue sheets, Venezuela with airmail blocks, etc.; fresh material, please inspect for full evaluation. Estimate  $3,000 - 4,000. $0