Bonhams : A Bonniksen 100mph speedometer by Rotherhams of Coventry, patented 1912,
Bonhams : A 50mph Bonniksen speedometer by Rotherhams of Coventry,
Bonhams : A Vintage 50mph Bonniksen speedometer,
Bonniksen speedo drive | BRITISH Only Austria Fahrzeughandel GmbH
Rare Instruments
Rare Instruments
J.P. Morgan's million-dollar pocket watch vanished. The hunt for it became an obsession | A gold pocket watch made for banking tycoon J.P. Morgan disappeared in the mid-1970s, sparking an enduring mystery.