Austria. //. Impressive mint and used holding from the first imperf issues onwards, all 4 margined with 40+ through 19th century high values inc a study of the perf varieties, many of which are unlisted, then the 20th century, again extensive, much of which would benefit from the specialized catalogues. Huge potential from the obvious to the much more interesting 19th and early 20th century. A recommended viewing, ideal for the specialist collector or dealer.