Casa del Habano Shop inside the infamous Partagas Factory opens its doors in November 1993. Therefore, XIII means 2006. i bought them there in 02/'07.
They are fantastic smokes, very earthy w/'Old Partagas' full favor, great construction too!
Pic 1 - Different versions.
Pic 2 - Only 1 version has limited production. This is 02/13 made. Bands show 155, X, XI, XIII anniversary.
Pic 3 - Second version which has Aniversario banding. Bands show X, XI, 2005=XII, XIII anniversary.
Pictures 2 & 3 are the 2 versions w/ only 'Aniversario' band. Lot of other versions include PSD4, P-P2, Monte 2, Cuaba Salomone etc...but w/ 'Aniversario' as 2nd band below the Brand band (like ER).