Hi,
I am a new member on this forum and started to get back into my stamps hobby a month back, thanks to COVID
the first thing I did, buying a couple of lots and then started on working on them. Found these in mint condition.
I am bit new to valuing stamps. I am looking into getting as much of help/info/advice.
Are these the expensive ones? #129300; As I see very high values. There is 1 stamp on top mint but glued to one of the stamps n its color is darker compared to others.
how should I proceed with the investigation

thanks.
