gas bubbles

is this gas bubbles,

 

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Yes, that's plating bubbles.

 

An easy way to tell if it's a plating bubble is to poke it with a toothepick and see if it collapses.

 

And poking the coin is much safer than poking at a sleeping bear.

 

And in case it is not a bubble the poking leaves nice scratches diminishing the coin value.

 

i did that and nothing collapsed, so now i have the longest die chip

 

Looks like they occur along a die crack, and that stuff in the 8 looks chipish.

 

its a combo of die crack& plate bubblings