細節
1902-13, an extensive and interesting collection of Acknowledgement of Receipt and Postage Due stamps, including a number of large multiples, a special study of the 1905-06 Constitution overprints displaying printing and perforation flaws, virtually all mint though including a 1906 "Bickel" cover from Kotor to Cetinje bearing 1905 Constitution P. Due 10pa. and 50pa. applied and cancelled on arrival; an excellent specialised collection of these issues. (several hundreds)