Some thoughts on the history of the Tracing Boards

PART 1

PART 2

PART 3

PART 4

ILLUSTRATION INDEX

Some thoughts on the history of
The Tracing Boards
ILLUSTRATIONS: FIGURE 15

Third Degree Tracing Board. Jacobs’s designs. c. 1800. [p.192, AQC vol. lxxv, 1962]
- pentalpha with all-seeing eye; open coffin; speculative working tools and operative implements; date 3000 on inscription scroll.