🔎 UNIDENTIFIED Flask lid or something else?

[Nathan W]

Made in Japan item, silver plated. It's has some writing on inside of the lid, can't make it out even with my headset magnifying lens. It could resemble some old flask lids but I don't think it's that. I checked sent bottles didn't see to much in resemblance. Any other keywords or ideas I can try to search? It was found at turn of century site if that matters. I've found items from 1880s to 1960s here

 

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[ncsuwolf]

The first edition “silver version” Nintendo control knob. Wildly popular among youth in the early/mid 80s……kidding. Nice find, but I have no idea.

 

[Robot]

Hi Nathan W
May be the cap from a Flask?

 

[Nathan W]

The first edition “silver version” Nintendo control knob. Wildly popular among youth in the early/mid 80s……kidding. Nice find, but I have no idea.

Haha

 

[Nathan W]

Hi Nathan W
May be the cap from a Flask?
View attachment 2193135

That was my first guess , my lid doesn't have threads