"Moshiach will not come until small coins will not be found in wallets"
"עד שתכלה פרוטה מן הכיס"
Talmud Sanhedrin 97b.
This Sign is about financial changes leading to the Coming of Moshiach.
From changes to how we run our simple day-to-day finances to what will Currency look like in the Messianic Age, to how currency will ultimately end.