Email from received from M. Gouby
Thanks to everyone for their input
Hello Frankie,
There are several penny that have been found with raised flaws , like spots, commas, etc.
They are all a result of a bit of dirt, etc. getting on the die and being transferred onto the coin it was striking.
1874, 1897, 1909, 1946 etc.
They are of interest to some collectors.
Is it worth keeping – yes why not !