WW2 Womens Overseas Hat

Unusual heavy white cotton canvas overseas hat in the typical WWII WAC / WAAC style. This one has a 2nd Lts rank bar on the right side as shown in the photo. Would love to hear from someone as to exact ID of this piece. Please check out my other auctions, and feel free to email your questions - I'll do my best to get back to you in a timely manner, but please don't wait until the last day of the auction and expect a response before the auction closes.