New Thread (new to me)

I had another gift from my aunt, and it possibly was my Gran's.

When I came home and saw it on the couch, it was out of the corner of my eye as I was hanging up my coat, so it looked like a  Penguin paperback novel.  Crime to be exact, as their covers were green.

But no, it is a box of vintage thread.

Gorgeous, isn't it?  I have started to playw ith it so will show you my progress soon.