Pohjan-piltti : kuvaus lopulta 13:tta vuosisataa This book, "Pohjan-piltti : kuvaus lopulta 13:tta vuosisataa", by Yrjo Sakari Yrjo-Koskinen, is a replication of a book originally published before 1905. It has been restored by human beings, page by page, so that you may enjoy it in a form as close to the original as possible. This book was created using print-on-demand technology. Thank you for supporting classic literature.