The engraving is well reproduced. Much better than Fournier.
There are bogus (nonexistent) copies
The colors are too bright
The serration is in line not comb
The paper is white, thick and modern.
The print is offset instead of typo
Not as plentiful as Fournier types but still quite numerous since it appears all the Colonies may have been forged plus several bogus ones. The problem is that given the poor images online they go unnoticed as forgeries. Here are some I found with cancels possibly to make them appear more real & increase value..