From typicallyspanish.com

Spanish Oddities
Table owned by Málaga foundation could have been used for signing of historic 1812 Constitution
By m.p.
Mar 31, 2008 - 8:17 PM

The Diputación de Cádiz have tracked down what they believe could be the table on which the historic Cádiz Constitution was signed in March 1812, published by the Cortes of Cádiz while the country was in the midst of the Spanish War of Independence. Diario de Cádiz reports it as a table made of Cuban mahogany which is owned by an arts foundation in Málaga province, the Fundación Arranz y Villa Padierna.

The Diputación provincial government has confirmed that they have commissioned an expert study on the table and, if it proves to be authentic, will negotiate the recovery of an object which played such a significant part in the history of not only Cádiz, but also of Spain.