2023 January, Volume 37, Number 1December 30, 2022/in Newsletter /by Amy KnudsonBill Kombol, Palmer Coking Coal Company, LLP, Coal Mine Hazards Newsletter Link https://3n1562.p3cdn1.secureserver.net/wp-content/uploads/2022/12/2023_1-Pic.jpg?time=1685287551 1014 659 Amy Knudson Amy Knudson2022-12-30 07:30:542022-12-30 07:30:542023 January, Volume 37, Number 1