Encyclopedia Dubuque
"Encyclopedia Dubuque is the online authority for all things Dubuque, written by the people who know the city best.”
Marshall Cohen—researcher and producer, CNN
Affiliated with the Local History Network of the State Historical Society of Iowa, and the Iowa Museum Association.
SPERRY & HUTCHISON COMPANY
SPERRY & HUTCHISON COMPANY. S&H Green Stamps (also called Green Shield Stamps) were trading stamps popular in the United States from the 1930s until the late 1980s. They were distributed as part of a rewards program operated by the Sperry and Hutchinson company (S&H), founded in 1896 by Thomas Sperry and Shelly Hutchinson. During the 1960s, the rewards catalog printed by the company was the largest publication in the United States and the company issued three times as many stamps as the U.S. Postal Service. Customers would receive stamps at the checkout counter of supermarkets, department stores, and gasoline stations among other retailers, which could be redeemed for products in the catalog.
Source:
Wikipedia
The 1916-1917 White's Dubuque County Directory listed 32 8th as the address.