Item Number	Date	Description
More info . . .	1549	14 November 1939	Lock protection: Barbed wire fence on northwest pier, typical section looking east from International Bridge
More info . . .	1550	14 November 1939	Lock protection: Sentry station at U.S. slip, with pilot house control searchlight mounted on roof
More info . . .	1551	15 November 1939	Lock protection: Day view of cyclone fence along Weitzel Lock, looking west from main entrance
More info . . .	1552	15 November 1939	Lock protection: Night view of illuminated fence, Brady Park Drive, looking west
More info . . .	1553	17 November 1939	Lock protection: Night view of illuminated fence along Weitzel Lock, looking west from main entrance gate
More info . . .	1554	17 November 1939	Survey of Rapids: Section by Michigan Northern Power Co., view looking south from Canadian shore
More info . . .	1555	17 November 1939	Survey of Rapids: Section by Michigan Northern Power Co., view looking north from American shore
More info . . .	1556	17 November 1939	Survey of Rapids: Section by Michigan Northern Power Co., general view looking west from lower end of rapids
More info . . .	1557	17 November 1939	Survey of Rapids: Section by Michigan Northern Power Co., view looking east from span No. 6, International Bridge
More info . . .	1558	17 November 1939	Survey of Rapids: Section by Michigan Northern Power Co., view looking east from span No. 7, International Bridge
More info . . .	1559	17 November 1939	Survey of Rapids: Section by Michigan Northern Power Co., view looking east from span No. 8, International Bridge
More info . . .	1560	17 November 1939	Survey of Rapids: Section by Michigan Northern Power Co., view looking east from span No. 9, International Bridge
More info . . .	1561	9 April 1940	Davis Lock Masonry Repair: View of Davis Lock after completion of north wall repairs, looking east
More info . . .	1562	9 April 1940	Davis Lock Masonry Repair: Monoliths, condition of blocks 141-145 inclusive in south wall
More info . . .	1563	9 April 1940	Davis Lock Masonry Repair: Monoliths, view of blocks 156 and 157 in south wall after completion of repairs

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