Wikipedia:Articles for deletion/Subcontractors Register
and tag for sourcing.  This is an old time annual directory now used as a reference by historians and other researchers looking for info on 19th and early 20th century New York City building contractors.  (Also note that Nom has a reputation, documented on his talk page, for bringing many articles to AfD inappropriately, PRODding others, and failing to follow 
— User:E, 18:47, 21 February 2018 (UTC)
Stance: keep
Cited policy: WP:BEFORE (Wikipedia:Articles for deletion)