Iron Age Ads: With post offices often being run out of the town's general store, advertising in postal guides.
In this ad from the 1885 edition of the U.S. Official Postal Guide, the Chicago Scale Co. invited postmasters to distribute promotional materials at the post office, and extended the same discount given to wholesale dealers for doing so. Additional compensation would be paid for lists of local farmers.
See a series of ads from the Postal Guide in the Image Gallery.
An ad for wood pumps (“Over 100,000 now in use …”) from the 1884 U.S. Official Postal Guide.
Horse powers provided power for threshing, grain cleaning and sawing, as shown in this 1881 ad from the U.S. Official Postal Guide.
Postmasters who provided lists of prospective customers to dealer Minard Harder would be compensated “liberally,” according to this 1885 ad in the U.S. Official Postal Guide.