Muzeum Techniki Wojskowej GRYF / News / May 14, 2023 Museum closed May 14, 2023 Museum closed We would like to inform you that the “GRYF” Museum of Military Technology will be closed to visitors on Sunday, May 14, 2023. We apologize for the inconvenience and cordially invite you to visit us on other days. Date 5 May 2023 Reading time 1 minuta Section Information