The 1733 Fleet, like the 1715 Fleet, was another entire Spanish convoy (except for one ship) lost in a hurricane off Florida. The lesser severity of the 1733 hurricane (which struck the fleet on July 15) & the shallowness of the wrecksites in the Keys, however, made for many survivors & even left four ships in good enough condition to be re-floated & sent back to Havana. A very successful salvage effort by the Spanish soon commenced, bringing up even more than the 12 million pesos of precious cargo on the Fleet’s manifest (thanks to the usual contraband). The wrecks themselves are spread across 80 miles, from north of Key Largo down to south of Duck Key.
In contrast to the 1715 Fleet, & because of the extensive Spanish salvage in the 1730s, the finds by modern divers have been modest. Nevertheless, the 1733 Fleet has been a significant source for some of the rare Mexican milled “pillar dollars” of 1732-1733, as well as the transitional “klippe”-type coins of 1733. 
History courtesy of Sedwick Auctions.
I can find less than 30 auction records for any Escudos regardless of denomination From the 1733 Fleet in the past 20 years.