McMillen [sic] improved sash balance & lock, combined
Subtitle: pronounced by architects and contractors to be the true principle on which to balance sash
Publisher: McMillan Sash Balance Co.
Published: 1894
Place of publication: Pittsburgh
Language: eng
Notes: Broadside.

At head of title: World's Fair Medal Award, Columbian Exposition.

Dated (in ms.) on OONL copy: June/94.