What are the uses of Lead Bromide?

When gasoline was leaded prior to 1995 (US) the combustion of gasoline containing lead tetraethyl was helped along by the addition of an organobromine compound, 1-2 dibromoethane, that formed lead bromide in combustion , which came out in the exhaust gas. Hardly a use but that was probably the only time most people would encounter this chemical.