We have just a few bulbs of this form, which is always in demand as it is the darkest flowered of all of the martagon forms, with intense purple-pink, burgundy-red and violet-purple blooms.
It is true-breeding but as the plant is a geographical variant only so it is variable, that is nature. The shade can veer to pink-violet in one direction and rarely to near black in the other, thus the flowers may not match exactly a particular picture that you have seen somewhere on the Internet.
These are five year old bulbs raised from seed of plants first found in coastal former Yugoslavia. They look to be flowering sized but, to be sure, please allow another season's growth.