A client wanted to honor a retiring colleague: Army officer, scholar, mathematician. He conceived of a fitting emblem – a slide rule.
Our task thus became how to present this emblem.
We arrived at the Greek letter Pi, which is one of the most important - and quixotic as its value has yet to be absolutely established - basic mathematical ico
Double Secret Latch Box 
Olga’s Heroic Frame 
Tuf Nut Altar 