In another packed issue of Stamp Collector we embark on a whistlestop tour of Liechtenstein, Germany and Switzerland, charting these nation’s incredible stamp histories. We also visit Papua New Guinea to examine the challenging but rewarding lithographs issued between 1907 and 1911; and we discover a magnificent set from Tonga depicting the former Protectorate’s intriguing history and geography.

We also take a look at the first stamps showing the silhouette of King Charles; marvel at the grand international expositions that have been celebrated on stamps; and recall the private postal services that sprang into life during the 1971 postal strikes.

With a round-up of new stamps the latest news, competitions, interviews and opinion, May’s issue of Stamp Collector is a must-read.