Set belonged to Altman Chaim-Chaskiel, it is a pre-war Polish identity card and his work certificate issued to a "Jew" employed in the KARA glassworks, where there is also a photo of his wife and son. Here is more information about the ghetto in Piotrków and its place of work. More info : https://en.wikipedia.org/wiki/Piotrk%C3%B3w_Trybunalski_Ghetto