Room: Tracing Board Treasury
Source Collection Tracing Board Treasury
The 3 architectural orders
Shaking Hands
ladder
level and plumb line
The cable tow
the Middle Chamber
Winding Staircase
The temple
gavel, the chisel and the folding rule
Globes
the 47th problem of Euclid
The Mosaic Pavement
Rough stone
The Keystone
All seeing eye
The Grave
The Square and Compasses
Accacia branch
