Single needle telegraph instrument with pedals, pattern B2015
Science Museum Group
© The Board of Trustees of the Science Museum
Single needle telegraph instrument with pedals, pattern B2015
Science Museum Group
© The Board of Trustees of the Science Museum
Single needle telegraph instrument with pedals, pattern B2015
Science Museum Group
© The Board of Trustees of the Science Museum
Single needle telegraph instrument with pedals, pattern B2015
Science Museum Group
© The Board of Trustees of the Science Museum
Single needle telegraph instrument with pedals, pattern B2015
Science Museum Group
© The Board of Trustees of the Science Museum
Single needle telegraph instrument with pedals, pattern B2015
Science Museum Group
© The Board of Trustees of the Science Museum
Single needle telegraph instrument with pedals, pattern B2015
Science Museum Group
© The Board of Trustees of the Science Museum
Single needle telegraph instrument with pedals, pattern B2015
Science Museum Group
© The Board of Trustees of the Science Museum