Document Archives — Miscellaneous Documents Miscellaneous primary source documents on submarine chasers, including a collection of scanned images of paintings, mine force documents and more. Documents in this category: Bureau of Navigation Circular Letter No. 125-19 History of North Sea Mine Force Association SC 137 Deck Log Pages Sale of Chasers -- Documents on Post-War Sales of Subchasers Service Club Log, Mystic, CT Subchaser Paintings Submarine Signaling The Subchaser Post The WWI Mine Monument in Boston Common Book traversal links for Miscellaneous: Other primary source items ‹ Scanning Photos Up Bureau of Navigation Circular Letter No. 125-19 ›