It was made in 1949 and the label says: 'To be laundered in accordance with Formula G, D/A Technical Manual TM 10-354 DO NOT DRY. I got this sleeping bag from my mom who once worked in a thrift shop and it's been sitting in my attic for over 20 years. Disk Mount Utility From Check Point Software on this page.
What is formula G of the department of the army technical manual TM 10-354 to clean a cold weather mummy bag? 'To be laundered in accordance with Formula G, D/A Technical Manual TM 10-354 DO NOT DRY CLEAN' Here is a picture of a label from a similar army.