Double gilt button can anyone date these?

[Samhurst88]

can anybody date these? The bigger button I can make out the letters CAIRN what looks like a olive branch pattern.also any suggestions for cleaning them would be greatly appreciated.

 

Amazon Forum Fav 👍

Agony and Death on a Gold Rush Steamer: The Disastrous Sinking of the Side-Wheeler Yankee Blade - Grab it through Amazon!

[Digger RJ]

Nice!!! Congrats!!!

 

[CRUSADER]

Circa 1800-1830

 

[Trezurehunter]

Nice job on the buttons.