"As some of you know, my book on NDH revenues was published in late 2015. Over the last five years, a lot of new information has been found about this interesting area of NDH collecting. This includes previously unknown stamps along with information on such things as plate numbers, pane sizes, security network varieties, etc. Consequently, I have put together a revision to the original 153-page book which adds over 80 pages of additional information. This version is in electronic format and only in English. I am making it available as a free download to anyone who purchased the original book. If you are a purchaser of the original book and wish a copy of the new version, please contact me at pj_in_sb@yahoo.com."
NDH Revenue Issues by Phil Hughes
