Illinois Society of Architects · Chicago · leaf 424
Air Duel Supply Riser … Enclosed mini-nil iri<|i<-;it»-s puiinular register,! LicatHSJjrft Small numerals indicate Mo of leader, [nches indicate interior diameter, Arrow indicates flow all numeral indicates No of particular stack;nches indicate size Outlet Register to Du EZZZZZ ZZZQ—X2222Z7ZZZZZ2 YA.*• YA CeHi…
Architecture · Building · Architects
Internet Archive · University of Illinois Urbana-Champaign · Public Domain Mark 1.0. Free to use for anything.
![An illustration from [Electric engineering.] (1902)](https://img.insideoutlibrary.com/img/200/ia-electricengineer03inte-634-374.webp)
