Dutch dealers catalogue: Netherlands and colonies. Stanly Gibbons: Great-Brittan and colonies. Michel: Germany former Eastern-Europe Asia Europe. Yvert & Tellier: France and colonies Worldwide.The item "Nicaragua 1932 YV Bloc 16-20 signed Roig UNG VF" is in sale since Saturday, July 23, 2011. This item is in the category "Stamps\Latin America\Nicaragua". The seller is "inverstamps" and is located in Amsterdam. This item can be shipped worldwide.