The latest version of the COB that I have is 2017..
It lists the following value for the imperforate versions..
Please note "Ongetand / Non denteles" means Imperforate.
There are two versions of the red 10 centime stamp --
#111 has the engravers name under the portrait and number 123 does not.
There is a 2 centime version in brown that is precanceled "Ghent – Gand 1914" that is valued at 200 Euros currently
