Operative Bricklayers' Society | |
_Operative_Bricklayers%27_Society_emblem.png) | |
| Merged into | Amalgamated Union of Building Trade Workers |
|---|---|
| Founded | 1818 |
| Dissolved | 1921 |
| Location | |
Members | 38,830 (1900) |
Key people | George Howell |
The Operative Bricklayers' Society (OBS) was a British New Model Trade Union based in London.