Espada de caballeria de linea ... not in the best of conditions

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Model 1803 ... also (wrongly) called 1799.
A basket hilt pattern already in use since 176X. Grip with thumb ring. Straight (non fullered) blade 85 cms.; double edged in the last section.
... Having traces of inscriptions in one side of the blade:
R Cs IV and in the other
Ca. D La. 1807.
Obviously an old warrior ... showing signs of battles against men and also against (wood and leather) grip rotting

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Anyone here with one in better condition?
Fernando