Help ID dime sized coins thanks hard to see them

[charr45]

 

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[ARC]

Look like Spanish.

 

[Mackaydon]

What is the diameter in mm of each coin; or shown scaled next to a ruler?
Top coin Spanish; yes.

Don....

 

[Mackaydon]

Assuming the hole is in the 12 o'clock position,the "RO" as seen in the pic would indicate Carlos III (1759-1788) as a possibility. The diameter would tell its denomination: Use 20 mm for a 1R, 28 mm for a 2R; 34 mm for a 4R and 40 mm for an 8R.
Don....
PS: The legend would then read: CAROLVS III D.G. HISPAN. ET IND REX

 

[Mackaydon]

Actually, the top coin could also be from Carlos IV (1788-1808). You mentioned "dime sized"; that being 17.9 mm in diameter. The 1/2R best fits into that measurement at 18 mm.
Don....

 

[charr45]

Thanks a ton Mack. That sounds right about the second one I found with buttons from the war of 1812