You are brave for venturing into the bank bag / coin bag / deposit pouch field.

They are partly utilitarian for coin, bank notes, and document transport and storage and partly serving an advertising / customer convenience purpose.

Attached are representative photos of bags in the Higgins Museum reference collection. We have plenty of them, with litte duplication.

As to the Coin Bags, note the Federal Reserve Bank of Chicago bag formerly said Gold Coin, and from the production code 5,000 were made or ordered on April 21 1933.

For more information on the Higgins Museum, see:
https://thehigginsmuseum.org/

To read earlier E-Sylum articles, see:
COIN BAG COLLECTING & OTHER STRANGE AFFLICTIONS(https://www.coinbooks.org/esylum_v06n27a21.html)
COLLECTING AND CATALOGING U.S. MINT BAGS(https://www.coinbooks.org/v26/esylum_v26n07a30.html)
NEW BOOK: U.S. MINT COIN BAG GUIDE(https://www.coinbooks.org/v26/esylum_v26n13a06.html)
HIGGINS MUSEUM HIRES CUHAJ AS CURATOR(https://www.coinbooks.org/v26/esylum_v26n11a06.html)