Vintage blue pants

these vintage blue navy pants are from the '60s. They have a metal zipper on the side. no pockets. They are mean by queen casuals. I do not know the size. I would say extra small. please look at photos of measurements. they have two darts in the front and darts in the back. there is a minor discoloration on the front right leg, probably at knee or thigh level. note in photograph. also, I think they are of a wool material and they are not lined.