Just made this bag with a unique function.
Both surfaces, front and back, are hard, and
in between these hard surfaces are the purse and
this open space with card pockets and 2 gathered pockets.
You can store keys, smartphone, book, etc.
In the zipper purse is this divider zipper pocket, and 6 card pockets.
As for your coins,
you can put it in and take it out from this window
which opens wide like this.