Engraving depicting the use of pulleys to make it possible to lock and unlock doors without getting out of bed. Dated 19th Century

Size: 9786px × 6429px
Location:
Photo credit: © World History Archive / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: archival, archive, century, engraving, engravingengravedpulleypulley, historical, history, lock, pulleys, systemmechanicsmechanismtechnologydesignlocklocksunlockdoorbedbedroom19th, unlock