Re: Basic Spanish signs and symbols you have found
In that case Rick,
Here is a summary of the research I have on that cross.
I know of no particular person who used it as their signature.
But it is mostly known as the wishing cross and the most famous and most popular of the wishes when placed was "Oro para ti".
It has been sported that anyone who looks upon the cross wishing the same wish as the originator will get his desire.
Below is a very shortened version of the history of the cross itself.
The town is dominated by the walled site (the walls are what remains of a Moorish castle) of the church of the Santísima y Vera Cruz (the most holy and true cross) in whose Sanctuary the cross is housed. The castle was once the local headquarters of the Knights Templar, who ran the town from 1266 until they were disbanded by Pope Clement V in 1312, though Caravaca’s development took off after the fall of Granada to Ferdinand and Isabella in 1492. The church and Sanctuary were built on the site of the castle in the sixteenth and seventeenth centuries, while the magnificent baroque façade, complete with large, carved pilgrim scallop shells, was added in the eighteenth.
Most of Caravaca’s beautiful churches were constructed during this same period of Murcian Renaissance, but its long earlier history as a border town between Christianity and Islam is still built into its street celebrations – which embrace the whole town – and in a less overt way into the fabric of some of its buildings. The fine wooden ceiling of the Church of the Immaculate Conception on the Calle de la Corredera, for example, was carved by Muslim converts who shaped no images into the wood, only Islamic-style patterns. Around the walls, in their own chapels and recesses, are life-size images of Our Lady and the saints. This unusual combination does not jar. The church is an echo on a grand scale of a miniature curiosity that can be found in the small number of jewellery and souvenir shops: it is possible to buy a pendant which has the town’s proudest and holiest possession, the two-armed cross, nestled into the gentle grip of an Islamic crescent moon. This thoroughly Catholic town seems entirely at ease with such juxtapositions possibly because the central historical/legendary event which encapsulates the encounter with Islam is not one of conflict and conquest but of conversion.
The story goes that on 3 May 1232 the Moorish King, Ceyt Abuceyt, dragged his prisoner, the priest Gines Perez Chirinos, out of his cell to celebrate Mass, about which the Muslim monarch had become curious. The priest made everything ready but then announced that he could not proceed without a crucifix. At this point two angels appeared, carrying the two-armed Vera Cruz and the astonished Muslim king converted immediately to Christianity. A more prosaic explanation of the presence of this piece of first-century Palestinian wood is that it was brought from the Holy Land by person or persons unknown, having originally been discovered by St Helena, mother of Constantine, on a trip to Palestine in the early fourth century.
and have gathered a lot of leads... 
