'Josephs Coat' rose first flower

This is a cutting Mum gave me of the rose that adorned the front of the house at West St.Dad used to get mixed up with Joseph and Jacob and called it 'Jacobs coat' (which is written on the label in the pot)
Dad spent a lot of time tending it, pruning and tying it back and it was quite a spectacle. I hope this one grows to be as beautiful. It has this flower and two other buds at the moment.