Looking for your opinion on this token that I can't seem to find any information about

Showboat Hotel & Casino Atlantic City New Jersey - was acquired in the late 1980's

gd mint mark ?
$100 Gaming Token
14K Gold Filled
Size of a $7 strike - Has a .999 Fine Silver marked rim with a gold filled center
Whole coin weighs 0.71 troy ounces on my digital scale

Would love to have more information about it

Thanks for any help you can give.
Merry Christmas All
Peggy