Bidspirit auction | 1.7/8” Stillwell, Avon Chert, found

1.7/8” Stillwell, Avon Chert, found in Stump Creek Van Buren county IA-Ex Nathan McWhirter, Iowa - 1.7/8” Stillwell, Avon Chert, found in Stump Creek Van Buren county IA-Ex Nathan McWhirter, Iowa