Interesting. I only was able to find the original listing. Here's the description Vintage 1924 S.S. Dollars, New Design, Canvas, US Mint, Philadelphia, Coin Bag; Used - Good Condition; Does show signs of wear/marks/frays/stains/coin outlines/etc. associated with age / use; Let the photos be the judge; Marked No. 139, New Design ( Peace vs. Morgan ); Thanks to a fellow eBayer, S.S. stands for Standard Silver; One noticeable fray / tear ( pictured ); Otherwise, nice bag for 100 years old; Estate find - no history on this item; Color varies with light angle; Measures approximately 20" in length x 11" in width; As Pictured; Please Review Photos.
"New design" makes sense. S.S. for "Standard Silver" makes me ponder why they thought it was necessary. Were there any non-standard silver coins issued by the mint? Distinguishing them from gold dollars also wasn't necessary since the last ones were minted in 1889.
That bag would contain Peace dollars. The design was changed from Morgan to Peace Dollars in 1921. S.S. is for Standard Silver and since it states Dollars, Peace fit the bill.
Saying new design is logical. Bags of dollar coins were often held in bank vaults for years. This would allow future people to quickly sort out what one to pick up.
