Amphibious operations embarkation and ship loading (unit loading officer) - USA Voorschrift, Field Manual, 60-30 Seacoast artillery : service of the piece 3 -inch rapid-fire gun : (barbette carriage) - USA Coast Artillery Field Manual, FM 4-90 Barographs ML-3-A, ML-3-B, ML-3-C, ML-3-D - USA Voorschrift, Technical Manual, 11-425 Operator's, Organizational, DS, GS, and Depot Maintenance Manual : Tractor, full tracked; DED; 7500 LB. Drawbar pull; W/Dozer blade, backrip scarifier (J.I. case model M-450) … Barriers and denial operations - USA Voorschrift, Field Manual, 31-10 Barriers and denial operations - USA Voorschrift, Field Manual, 31-10