Saxby's Patent Spherograph is a nautical tool used in circular sailing. The majority of the damage was in the slipcase, however a small instruction booklet was also damaged from being crushed by the other parts of the instrument.
View of the spherograph and all its parts before conservation
View of the spherograph after conservation including a new enclosure for the instruction booklet. By making an enclosure the same size as the other parts of the spherograph the instruction booklet was no longer vulnerable to falling to the bottom of the slipcase and being crushed.
View of the bottom right hand corner of the slipcase before conservation
View of the bottom right hand corner after conservation: a new corner was built up using several layers of handmade paper followed by a layer of tinted Japanese paper.
View of the bottom right hand corner of the slipcase before conservation
View of the bottom right corner after conservation: the corner was built up using handmade paper followed by tinted Japanese paper.
Joint between left hand wall and back board of slipcase before conservation
Repaired joint between the left hand wall and backboard of slipcase