I have a 5c Mauritius silver jubilee. I have 12 different ones. This one has a very slight vertical line left of flag pole.I have seen others that have vertical line but look much taller. My question how big does the line have to be to be of value. Thanks
Here is the Stanley Gibbons illustration of the main listed varieties. There are more but they do not occur in a consistent plate position and can't be considered as significant. These lovely stamps are a "flyspecker's paradise!"