Fire mark

Fire marks were placed on the outside of buildings to indicate that the property was insured by a specific company. This identification was particularly important in London before the introduction of street numbering in the 1760s. Householders with fire insurance could expect the company to send its 'fire brigade' to put out the fire. Insurance companies often had reciprocal arrangements with each other so that if a fire brigade put out a fire at a house insured by a different company then the brigade's company would be reimbursed. In 1826 an agreement was reached between the Sun Fire office, the Royal Exchange Assurance and the Phoenix Fire Office to combine their brigades under the leadership of one superintendent. This provided the basis for the creation of the London Fire Engine Establishment in 1833.

This fire mark was issued by the Bath Sun Fire Office, founded in 1776. The company did not operate its own fire brigade for the first thirty years of its existence and instead relied on engines belonging to other companies. It was finally wound up in 1838 and its assets purchased by the London Sun Fire Office.