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I have not used the manufacturing censuses. I went ahead and copied the information from the "Source Citation" listed at Ancestry for the "citing..." layer.
1880 US census, Lincoln Co., N.C., Catawba Springs Township, manufacturing schedule, enumeration district 110, unnumbered p. 1, Henry Brevard, blacksmithing; imaged, “U.S., Selected Federal Census Non-Population Schedules, 1850-1880,” Ancestry (https://www.ancestry.com/search/collections/1276/records/3434750); citing “National Archives at Washington, DC; Washington, DC; Non-population Census Schedules for North Carolina, 1850-1880: Agriculture (part) and Manufacturing; NAID: 2791276; Record Group Number: 29; Record Group Title: Records of the Bureau of the Census, 1790-2007."
Matthew, see EE4's §7.31:…
Matthew, see EE4's §7.31: Nonpopulation Schedules. The example there is for the 1880 "Defective, Dependent, and Delinquent Classes," schedule, but the format is the same—and it's much shorter than all the unneeded details that Ancestry gives us.