Hawkeye--
Nice find! First, this token is not listed in the 1990 book, Kansas Trade Tokens by William Waken. That isn't immediately an indication of rarity, but it does usually indicate that the token is not common. This branch of numismatics is still young and the study of tokens is far from complete.
This token is no doubt part of a "set" with denominations ranging from 5? to $1.00 or perhaps more. Merchants bought "butter & eggs" from local farmers, paying them in tokens or a discounted amount of cash. Also, if the customers of the business needed a loan until the crops came in, money was advanced to them in the form of these tokens. The tokens could be used to purchase goods from the store, although (depending on the repution of the store) they might work at other businesses in the town. The barber needed to buy groceries, too!
There are three listed businesses that were known to have used tokens in this town. The date of this token is probably 1910-1920 as Samuel M. Marshall is listed in the 1910 & 1920 Censuses as "merchant - general merchandise". He was born about 1860 in PA.
John in ID
