I read somewhere that one can change subtype throughout our lifetime.
Info and opinions are welcome.
Edit: add quote
4) In contrast to the main type, subtype can change during one's lifetime, and not once.
DCNH Subtypes: Empirical Portraits by Vera Borisova
Info and opinions are welcome.
Edit: add quote
Quote:
4) In contrast to the main type, subtype can change during one's lifetime, and not once.