I have a Swedish "bike-bread bag". I'm not sure if this one is from the late 1800's (end of Vetterli era) or if this is the WWI era Swiss bag.
It is different than the most common ones you find. It still has the heavy once black leather backing and the maker: J. Obrecht Sattler, Zurich with the number 14 on the top of the bag punched in the leather.
It has the tan color webbing shoulder strap. I could not find out what the "K" under the Swiss gross stands for on the leather loop attachment to the bike.