Vintage cream and red mid-knee midi collared button up dress

Tag reads Size 11 , would probably fit a size L/XL well. loose fit, straight line silhouette dress. Unfortunately I don't know the material, there's no care tag, but it appears to be linen. Two false pockets on the chest area, two functional ones near the hips. I think it's a nurse uniform, but I'm not educated enough on vintage to know for sure. Some loose threads in the arms, and the fabric is slightly yellowing near some seams. Otherwise in wonderful condition.