Polish pullet or roo?

[Jo8981]

I posted a couple of weeks back about a batch of mixed aged rescue chicks I got. Now they are growing well. This one I was sure was a pullet as no comb or red face visible and had beautiful rounded crest. I'm now having doubts with new feathers appearing (lovely patterns) and some definite reddening around the face with a small comb developing. I know they are late developers in general but any idea? I'm purely guessing an age of about 10 weeks? Please correct me if you think older or younger. I will be asking about the others when I see any noticeable changes on them. At the moment the other 6 could be either but have no reddening of the face yet.

 

[sourland]

I strongly lean cockerel on this bird.