✅ SOLVED What do I have..

[Debbie61]

Another one of my finds, unsure what it is and no clue hold old it might be.

 

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[yelnif]

It looks like a U.S.M.C. insignia. Not sure how old though? HH yelnif

 

[osage express]

Yours would be ww2 U.S.M.C insignia ..WW1 has longitude and latitude lines.....Osage