Worldwide. Many 1000s of stamps all one of a kind, mint and used, British Commonwealth only, particularly the 1940s to 1960s including KGVI Post Offices abroad to 10/-, Burma KGVI, Hong Kong KGVI to $1, 1941 centenary set mint, useful Indian Native States to explore, as well as Ireland, Kuwait, Malaya, Japanese Occupation o/ps, etc. Completely uncatalogued