tag:blogger.com,1999:blog-61379575088648114.post4475317322923364922..comments2024-03-29T07:57:55.016+00:00Comments on Norvic Philatelics Blog: Retail booklets - a study of the paper thicknessIan - Norvichttp://www.blogger.com/profile/16436130277706268046noreply@blogger.comBlogger1125tag:blogger.com,1999:blog-61379575088648114.post-32348842254822063282020-09-14T13:36:52.713+01:002020-09-14T13:36:52.713+01:00Ian, I’ve just acquired a 1st class book of six (M...Ian, I’ve just acquired a 1st class book of six (MSIL M19L) with thinner, whiter backing paper. I haven’t seen any reference to it yet so am I the first? 😉Sir_Loinhttps://www.blogger.com/profile/13461102690172624271noreply@blogger.com