Looks to be very old based on the tag.  Could be 40's or 50's.  Tagged size 42 but I would say a S/M size, since it's meant to go over your normal clothes.  See pics for measurements.  Fast shipping.  I honestly have no idea what to price this at, so if you can send me a reasonable offer or let me know more about it, I will gladly accept.  Thanks.

This is a vintage item. It may have spots, wear, fading and pilling. However, it has lots of life left in it! Please be aware that it will not be perfect. I have tried to point out any large obvious flaws but smaller ones can slip by.