The Spanish helmet was not worn by de Anza. His expedition was not military. Rather, it was to establish missions on the California coast. Please refer to on-line illustrations of him.
#10 & 11 Hi Carol de Anza was a missionary of sorts - a man of peace rather than military. His pilgrimage was to establish missions along the CA coast. Perhaps a mission bell would work well into a design. What most designers have created thus far is very traditional - even stoic. We would like to see something more flamboyant - more unique and eye-catching.