2004 ROCUPEX '04 Taipei four-colour and full colour printing trial set of 5, all mounted on Dutch printer stockcard. Very scarce.
2004 ROCUPEX '04 Taipei four-colour and full colour printing trial set of 5, all mounted on Dutch printer stockcard. Very scarce.台灣“04全國郵展”四色及彩色試樣票一套共五枚，貼於荷蘭印刷廠硬卡上，十分少見難得。
