1929 BSA S29 Ohv 2 Port Sloper. The history of BSA predates the motorised age considerably. Its roots go back to the time of King William III who, in 1692, attempted to improve the fire power of the army by drawing up a contract between the Board of Ordnance and five Birmingham gunsmiths. This 'contract' continued for many years and on 7 June 1861, the Birmingham Small Arms Company was formed; by 1863 a factory had been built at the Small Heath site on the outskirts of Birmingham. In 1880, the company started to make cycles whilst retaining the 'Piled Arms' symbol that had become known throughout the world. Whilst rival factories pursued racing success to ensure popularity, BSA concentrated on producing well-priced, good-quality machines in volume in order to enjoy the economies of scale. Announced in August 1926, the Sloper was introduced in 1927.