Engineering and Design PlansDetailed engineering schematics and lithographs of excavators and cranes used in construction and maritime contexts. General design, fog bell apparatus , Horns Communication devices. Coast Guard Heritage Museum General Collection 138 assets in this story6145-484919876145-484887766145-484902656145-438032506145-543015831746-299989246145-551834866145-440312326145-592784726145-559720946145-436848496145-440368456145-486543176145-513926046145-484891841848-192983161746-299997796145-467853281746-299580396145-551834696145-467389046145-484893496145-295829046145-467569491899-762486356145-296003106145-484877556145-467570276145-520706774443-754766636145-485655586145-296712986145-295831556145-486348474443-754776351746-211206936145-486552144408-11499 PREVIOUS of 2 NEXT