Hello rowska, welcome!
These stamps shown are from Japam. That is about as far as I can go.
The pictures need to be in close amd clearer. Try putting the stamps all together, with the word NIPPON (Japan) reading upright, or the numbers upright, and re-scanning them so you can get a larger picture.
They should take up about 1/3 of the scanner bed screen. Then, with that picture (about 200 dots per inch resolution should be good, and you may have to cur that in half, file size speaking) we should be able to better see the stamps and maybe even see a year date on the stamp or the bottom of the stamps.
This would help a lot in using out catalogues or even
ebay to identify and value them for you.
Best,
Doug