These marbles appear to be old

[SeekerProB]

The marbles to the left appear to be older than those on the right. I know nothing about marbles. These were given to me from a site that I have permission to hunt. An incentive for sure!

 

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[Tpmetal]

Looks similar to ones from my dads collection from when he was a kid. His were from late 50s to 60s. Not sure about yours though

 

[cheese]

They are all from around the late 30s through the 40s, maybe one or two from the 50s. The left ones are nt older than the others, they are all around the same ages +/-10 years or so.