Knals - Poen The Netherlands > Rotterdam > Jam Helderheidsplein 2021 Knals - Poen City Rotterdam, Country The Netherlands Year 2021 Writer Knals - Poen Category Jam Helderheidsplein 2021 Photo by Mek(CAB) Tags Holland Oldschool Graffiti - Jam Helderheidsplein 2021 - Knals - Poen - Rotterdam Graffiti