Vintage 50s 60s Fechheimer Blue Post Office Uniform Button Up Shirt Men’s L/XL

The shirt I believe is tagged as a size medium, but based on the measurements, the size is slightly larger.

Tag: Fechheimer

Color: Blue

Materials: 

• 65% dacron polyester
• 35% cotton

Made In: USA

Measurements: 

• Pit to pit: 23.25"
• Length: 31.75"
• Shoulder - Seam to seam: 17"