Knocker uppers: Waking up the workers in industrial Britain - BBC News
Knocker-up - Wikipedia
Brass Lion Head Knocker (Downing Street Knocker) Brass Door Knockers | External Brass Door Knockers | Cast In Style
The London 'knocker-up' – archive, 1914 | Work & careers | The Guardian
British Handmade Square Door Knockers in Brass and Bronze finishes | Door handles & door accessories | Cheshire Hardware
Home - Antique Door knockers
A Brief History of the Door Knocker
Elkington & Co. | Door knocker | British, Birmingham, after Italian original | The Metropolitan Museum of Art
The knocker upper at work - BBC News
Door knockers british hi-res stock photography and images - Alamy
Knock Knock: A Brief History of Door Knockers – 5-Minute History
Satin Brass Door Knocker | British Ironmongery
Victorian Door Knocker Cast Iron Door Knockers | Black Iron Door Knockers | Front Door Knockers | Lion Door Knockers
10 Door Knockers to Make the Best First Impressions | Charleston Blonde
Knockers-up: Waking up the workers in industrial Britain, 1900-1941 - Rare Historical Photos
Lions Head Door Knocker on a Door of a Typical British House, UK Stock Image - Image of front, flat: 200290349
Door Knockers | History & Installation | The British Ironwork Centre
A (Not So) Brief History of Door Knockers | Brass bee
Who Were the Knocker-Uppers? | Snopes.com
The Wellington Door Knocker & Other Door Knocker History - Shannon Selin
Knocker uppers: Waking up the workers in industrial Britain - BBC News
Aged Brass Door Knocker | British Ironmongery
Hand-forged Door Knocker - Tinsmiths
Matte Black Door Knocker | British Ironmongery
