B.F. Harvey Co. Bedding Factory 1911
This building was designed by architect James Walker as a three-storey factory for Benjamin Harvey. Architect William F. Sparling designed two more storeys, which were added in 1922 by the Toronto Feather & Down Co. Distinguishing features include the roofline cornice and industrial-scale windows.
Plaque via Alan L. Brown's site Toronto Plaques. Full page here.