Strange Marine shoulder boards

[Matoleon]

Hello,
It is the first time I can see a blue coastal artillery board!
The photo is bad but what do you think of it?
May it be WW2?
Thanks for your help

[Gerard/Relic Hunter]

I think it's green with bad lighting.


Gerard

[Matoleon]

No, the website where I saw them tells that they are really blue!!!!!!!!!!!!!!!!!!!