AC Siena 2006/07 Third Football Shirt Mass Marcin Siedlarz #13 [M] Match Issue

Original AC Siena football shirt from the 2006/07 season.
Made by Mass.
A rare third kit, in the match version, prepared for Marcin Siedlarz, who moved to Italy as an 18-year-old attacking midfielder, but with quite solid experience for his age. He already had 25 appearances and one goal in the Polish Ekstraklasa for Górnik Zabrze and a short spell at Widzew Łódź.
In the end the player never wore this shirt, which makes it quite a rarity.
The shirt also features the player's hand-signed autograph.
Very good condition.