Hello,
I thank you all, for kindly not telling me directly that they are all ordinary stamps. So I learned something else.
For the 1/2 cent stamp I checked the 3 areas that are confirmed.
For very precise perforations for these stamps I applied a distance measurement over 9 perforations (to improve the reading accuracy)
Stamps 2c have a perforation of 12x12
Stamps 3c have a perforation of about 12.1x12.25.
By abstracting my measurement method, can the results from 3c be explained?
Thanks.


