
A certificate regarding Picard's win of the Silver Spade
The Silver Spade was an award given to winners of bridge tournaments by the Federation.
On stardate 34180.7, Starfleet held a tournament on Risa. The winner was Jean-Luc Picard, who was awarded the Silver Spade. A certificate containing this information was included in the Picard family album. (Star Trek Nemesis)

A closer look at the silver spade
Picard visited Risa in "Captain's Holiday", set around stardate 43745.2. However the stardate on the certificate suggests an earlier visit, before commanding the Enterprise. Although Riker starts pitching the planet to Picard as if he is not familiar with it, nothing in the episode categorically rules out the idea that Picard has been there before.