Hi
We have breed iron age with the tamworth, your sow should be black. The piglets in the photo are no different to tamworths (new born pedigree tamworths have stripy backs just a different shade of red) when I was at collage the pig tutor informed us that a pig put to a white boar in the morning and a black boar in the afternoon, half the piglets would be white and the other half would be black. You have to remember the piglets inside their mother resembles an airfix kit. The only logical explination is she was mated with a gos as some of the tamworth piglets are spotted this is the only problem with dolly mixture pigs, they are neither one breed or another just themselves and once they are dispatched and reformed as sausages and bacon there is no difference or at least very little. There is no substitute for pure breed even if they do look cute. The other thing with Iron age or wild boar is, if you handle the piglets (when the squeeling starts) the wild boar or Iron age mother even if it is not her piglets she will charge through anything to protect the young. I personally would not recomment any Iron age pigs to anyone unless they are very experienced with pigs and very athletic.