Len Jus Building (Mason City, Iowa)
{{coord|43.154|-93.201|region:US-IA_type:landmark|display=title}}
The Len Jus Building on Federal Avenue in Mason City, Iowa was constructed in 1882. It has a rare sheet-metal facade, manufactured by the Mesker Brothers. This building has been placed on Preservation Iowa's Most Endangered list because of its poor repair and indifferent ownership.{{cite news|newspaper=Cedar Rapids Gazette|title=Cedar Rapids historic buildings make 'most endangered' list|url=http://www.gazetteonline.com/apps/pbcs.dll/article?AID=/20090124/NEWS/701249934/1002/NEWS}}{{cite web|title=Len Jus Building|publisher=Preservation Iowa|year=2008|url=http://www.preservationiowa.org/programs/endangeredItem.php?id=219&year=2008|access-date=2012-08-11|archive-url=https://web.archive.org/web/20110828012431/http://www.preservationiowa.org/programs/endangeredItem.php?id=219&year=2008|archive-date=2011-08-28|url-status=dead}}