I really appreciate everyone's opinion and thanks to all.
I asked about the validity of the certificate because the stamp never appeared to be EF to my untrained eye from the get go.
I've had a hard time finding this stamp at a reasonable price that is MNH OG and in VF grade.
I've added a couple pictures comparing it to my three cent brown I have not adjusted the pictures but I did crop them.
The first picture is with the Scott #116 0n the left and the second picture I switched them around and the Scott #116 is on the right.
Theses are photographs not scans and if you enlarge these pictures both stamps will look like they could be regum's but I think it's just the poor quality of my pictures.
I looked at the prefs with a 20X loop and I can see no glue on the fine strands left from the separation of the adjoining stamps.
I agree there is a suspicious looking accumulation of glue on the one corner with the extended point however this tab was very close to separating with one of the adjoining stamps.
Would it not be possible for the glue to be a little thicker in this area enough so it was stronger then this thin strand of paper, meaning the glue held together and some of the paper under it went with the adjoining stamp.
In hand it just looks normal and the same as my other stamps from this series.
Cheers, Bill

