Found:


Model of Diagonal Framing

anonymous, anonymous, c. 1822, instruction model, NG-MC-115-A

Model of an Optical Telegraph

anonymous, anonymous, 1795 - 1816, demonstration model, NG-MC-813

Model of an Optical Telegraph

anonymous, anonymous, c. 1795 - c. 1816, demonstration model, NG-MC-814

On display in room 0.13

Model of Diagonal Framing

anonymous, anonymous, c. 1822, instruction model, NG-MC-114-A

Two Models of Diagonal Framing

anonymous, after Sir Robert Seppings, c. 1822, instruction model, NG-MC-114

Two Models of Diagonal Framing

anonymous, after Sir Robert Seppings, c. 1822, instruction model, NG-MC-115

Model of Diagonal Framing

anonymous, anonymous, 1814, instruction model, NG-MC-114-B

Model of Diagonal Framing

anonymous, anonymous, c. 1822, instruction model, NG-MC-115-B