This is typically what is called a "Lange reprint counterfeit"
The narrow C is the real culprit.
Now having said that I believe there is a genuine variety with a narrow C. Here the C is not only narrow but the bottom part of the C is noticeably small.
The 2 A's together at the top should look the same either pointed or flat on top depending on the issue
There are several other items but the quality does not permit clarification. The overall poor quality is another issue.
Also the"hat" in the inner oval appears to be incorrect - quality too poor to be sure
The # of pearls in the 5c is either 74 or 72 depending on the type.
The 10c has 78, 15c 71.
To complicate matters there is I believe a "Geneva Fake" with 72 pearls but other traits.
I just noticed the thinning of the white oval over the IN - another forgery trait.
I have mentioned this before but I believe just noting that "It's a Fake!" should be supplemented with some reasons. My reasons are there for analysis and comment.
I found a genuine 15c on Cherrystone that can be a reference for some noted items
