Bremm Bremm , known on Earth as the Silver Turk , was a Cyberman from the planet Mondas who was sent on a mission to find Earth . Biography . Bremm and another Cyberman called Gramm were sent in a scout craft to find Earth , the lost binary twin of Mondas . Bremm was responsible for navigation . They were the first Cybermen to succeed in this task . Their craft crash - landed in the mountains of Austria around 1873 , badly damaging both Cybermen . They were found by a forester who sold them to Dr Johan Drossel . The latter invited Alfred Stahlbaum , a talented mechanic , to help him repair these strange mechanical men , but Stahlbaum soon stole Bremm for himself . Stahlbaum used ether to keep Bremm under permanent sedation . After teaching it to play several musical instruments and several games Stahlbaum organised its performances as " the Silver Turk " at the 1873 Vienna Exposition . The last performance took place at 5 o ' clock on 11 September 1873 and was interrupted by the Doctor . Intent on eliminating the Cyberman menace , the Doctor tried questioning Bremm , but the Cyberman managed to mentally knock the Doctor unconscious . Stahlbaum then fled with Bremm before the Doctor came to . The next day Bremm was rescued from Stahlbaum by Gramm , who also kidnapped the Doctor ' s companion Mary Shelley . Mary suggested a way to repair their damage using Galvani c lightning . To achieve that , Gramm carried Bremm to the top of Stephansdom , the highest building in Vienna . Although Mary ' s plan worked , after the lightning struck Bremm only reached " two - five " percent capability . It then proposed to adapt the neural generation unit in its head into a transmitter to contact Cyber - Control on Mondas . After Gramm agreed and removed Bremm ' s remaining Cyberman arm , Bremm was terminated . Gramm described it : " Bremm unit closed . " However , Bremm ' s memories were transferred to Gramm . The Doctor described it as Bremm becoming a part of Gramm . When Gramm mentally reached out to Bremm to check its memories , a broken piano rendition of " Silent Night " can be heard instead of words . ( AUDIO : " The Silver Turk " ) Physical appearance . After the crash , Gramm took Bremm ' s left arm . Apart from its arm , Bremm also lost both of its legs . The Eighth Doctor believed that its legs had been cut off by Drossel to prevent an escape , but Drossel himself claimed that this had been the result of the crash . Instead of the missing arm , Bremm was given a fully functional wooden arm , similar in appearance to the limbs of puppets from Marionettenburg created by Gramm for Drossel . Using both arms , Bremm could play the piano and perform other tasks . Moreover , despite not having legs , it was able to work the pedals on the piano . During its performances as the Silver Turk , Bremm sat in a wheelchair . It was wearing a turban , and its face was concealed by an elegant mask with splendid mustachios . Earth skills . Bremm was a good chequers player , publicly beating Count Rolf Wittenmeier at its 12 o ' clock performance on 11 September 1873 . He could also play chess . During its 5 o ' clock performance on the same day , Bremm played the " Moonlight Sonata " on the piano but his rendition was too mechanical . He could also play spinet and flute . Mission to find Earth . As the navigator of the mission , Bremm should be credited with finding Earth . However , the impact of the crash caused both Bremm and his crewmate to believe they were on Mondas instead of Earth . When Bremm learned the truth from Gramm , it still could not verify it and proposed to sacrifice itself to contact Cyber - Control and complete the mission . ( AUDIO : " The Silver Turk " )