its not a golden neck it is a millie you can see the very faint cheverons that would make up the millie patteren also golden necks do not have any color besides buff and white. that pic you can clearly see buff, white, and blue. which means instead of the black that you normally associate with...
they are both d'uccle just not the best of quilty though mille fluer (actually looks like a blue mille) and a porcelain. the eggs should be a cream color