Hello to every body, Today I picked up this bicycle bell. It is double sided and inside has ramps with weights on springs that strike the domes. It has a brass waist band app. 10mm wide with Lucas badges on domes. Half the handle bar clamp is steel. It is very weighty. On the thumb lever it says JOS.Lucas Ltd n132 Birmingham.
Can anyone advise on age or any other details - would be most interesting.