Coal Miner's Safety Lamp, Ackroyd & Best.

Flame safety lamps had two main functions. First, they gave safe light in a dangerous atmosphere, and second, they indicated the presence of methane through changes in their flame's color. Flame safety lamps began to be replaced by safer electric lamps in the beginning of the 20th century, although they remained in use as the easiest and most reliable gas indicators well into the middle of the century.

This model bears the manufacturers brass plaque: "Ackroyd & Best Ltd, Makers, Hailwoods Improved Lamps, No. 4, Type 01, Morley Leeds England." The company traded under this name until 1927 when it was reformed under the title Hailwood & Ackroyd Ltd. This is a heavy, beautifully machined solid brass, iron, and glass lamp. The glass chimney is intact; the fuel reservoir is in great condition with wick raising wire, spark mechanism, and wick. England, Ca. 1920.

Ackroyd & Best Safety Lamp (No. C654). Dimensions: 10.25"H x 3.25" Diameter not including the hanging hook which would add another 4". Shipping; $10.