Stamps/What's?2 messages

Good evening, while selecting a stamp collection, we come across (totally unfamiliar with stamps and collectors) stamps and other things that we do not know the name of, and so have no idea how to look it up? Does anyone have any tips? For example, found a number of sheets of stamps from, for example, Tanzania with 4 bucks of 25 stamps on 1 sheet ... without stamps. BVD for reading and answering!

Just enter them at tanzania

first check if your block or sheet is listed here.

https://www.catawiki.nl/catalogus/postzegels/landen-gebied/155805-tanzania?page=1&field=SO_47&order=a&external=0&view=g&page=1&vg = na & amp; type = s & amp; language = nl & amp; area_id = 155805 & amp; user_id = & amp; stamp_filter = & amp; filters% 5Bin_wish_list% 5D = & amp; filters% 5B7847% 5D = & amp; filters% 5B7845% 5D = & amp; filters% 5B7857 % 5D = & amp; filters% 5B7855% 5D = 231441 & amp; f ilters% 5B7849% 5D = & amp; filters% 5B8103% 5D = & amp; filters% 5Byear_from% 5D = & amp; filters% 5Byear_to% 5D = & amp; filters% 5Btitle% 5D = & amp; filters% 5Bsearch_key% 5D =

https: //www.catawiki. en / catalog / stamps / countries-areas / 155805-tanzania