The Istanbul Model was designed by graphic artist Nguyen Du (Vietnam) and features a pair of hands and a dove against an Arctic backdrop representing sustainable development in the postal sector. Ten countries participated in the competition which was held 7 October 2016, during the UPU congress in Istanbul, Turkey. It expires after 31 December 2021.
The Istanbul Model was designed by graphic artist Nguyen Du (Vietnam) and features a pair of hands and a dove against an Arctic backdrop representing sustainable development in the .postal sector. Ten countries participated in the competition which was held 7 October 2016, during the UPU congress in Istanbul, Turkey It expires after 31 December 2021.