Cambist Público Deposited
A banker. Cambistry. The science of exchange. From the Italian cambista , from cambio , meaning exchange.
Ruding (ii. 138) states that " in the year 1270, the keeper of the cambium was ap- pointed to assay the coins throughout the whole Kingdom. "
- Frey's Dictionary (American Journal of Numismatics, Vol. 50, 1916)