"American Digger Magazine"@en . . . . . "22842274"^^ . . . . . . "Greybird Publishing"@en . . . . . . "Butch Holcombe"@en . . . . . . . . . . . . . "American Digger is a bimonthly magazine about the hobby of recovering historical artifacts based in the United States."@en . . . . . . . . . . . . . . . "Bi-monthly"@en . . . "2004"^^ . . "1105483364"^^ . . . . . . . "American Digger (magazine)"@en . . . . . . . . "8624"^^ . . . . . . "American Digger is a bimonthly magazine about the hobby of recovering historical artifacts based in the United States."@en . . . . . . . . . . . . . "American Digger Magazine"@en . . . . . "Hobby magazine"@en .