We have always considered and collected these commercial masks and helmets as industries tribal art. Examples can be elegant in their simplicity or bazaar and complex. They are always unique, suprising and filled with personality.
Huge 1800s E. Thacher Cylindrical Rule
This slide-rule an analogue device, reached a high degree of sophistication. In 1881 E.Thacher, a new York inventor patented this huge cylindrical rule. By using a compass, computation could be proformed that were accurate to four places… $500
