London, Middlesex. Sise Lane Halfpenny, 1795. Edge: PAYABLE AT THE HOUSE OF T. & R. DAVIDSONS.
 
Obv: A view of the seated “Mistress of the Metropolis” with St. Paul's Cathedral in the background, legend around, date in exergue. Rev: A radiating triangle balanced on a sphere and held by two hands with a crown above, legend around.
 
An old brown tone.