Unusual Snaps

[MD Helmets]

Got this shirt at a flea market. I think it is WWII US wool service shirt. But, I've never seen the snaps on a wool shirt sleeves like this shirt has. Anyone have any ideas or know why? I suspect it has something to do with shoulder patches, but that's just a guess. Thanks for the help!

[Scout]

Id go with a patch too.
Snaps could be added years after the shirt was made, so need not be for an official patch of course.

[Walkwolf]

This was common practice so that insignia could be removed for laundering.........

[MD Helmets]

Thanks for the replies. It's an interesting setup, but a good idea non the less.

[75thinfantry]

in wwii, they sewd their patches on. i suspect that it was put on a few decades later, for patches

75thinfantry