https://www.jancz.store/collections/jan-cz 2026-04-30T07:44:58+02:00 daily https://cdn.shopify.com/s/files/1/0955/2537/2281/collections/jan_cz_bw.png?v=1764826972 Jan Czochralski Collection: Pioneer of Silicon. Obraz Modela w koszulce z kryształami