Mint or Used?: A primer

[@GreatStampAdventure]

Thanks for the video. I am a beginner collector and I learned quite a lot from your series so far.

[@earldebiew8997]

Got this one too

[@rogerturner1881]

re the perforations in very early stamps that have been [like a blunt perforator] like the China, Japan etc. Why did they do this...and was it deliberate .? Would be interesting to look into this. i collect MNH /MINT AND USED for my countries i collect.