The postage stamps of Nepal

This book is related with postal history of re_public nepal.Auther mr. Tek bahadur khatri was always related with mass_communication reserch sector in nepal. And he is also stamp collecter of nepal & other countries i.e germany etc one of the rare stamp of austria & germany's before 1850's Emperor's stamp ; 5 K. r it's hand madenewspapaper's print origional showing here and 500 germany rare hitler's stamp and so many. But how much it"s value in these days.It's rare & origional ,It's onsale now-a-days
His contact tele no ;977-01= 5552214
Adress ; lalitpur,jhamsikhel,nepal