Your Help Wanted: When Was This Pic Taken?

This archival photo of Secaucus and environs has been sitting in an NJMC office for quite some time. The question is, when was it taken?

(Click on the image for a larger view.)

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DeKORTE PARK, Lyndhurst
MILL CREEK MARSH, Secaucus
RIVER BARGE PARK & MARINA, Carlstadt
Directions take you to Outwater Lane in Carlstadt. Follow Outwater Lane to end for the River Barge Park & Marina.
LAUREL HILL COUNTY PARK, Secaucus
RIDGEFIELD NATURE CENTER, Ridgefield
MILL CREEK POINT & SECAUCUS HIGH SCHOOL BOARDWALK, Secaucus
The Secaucus High School Marsh Boardwalk runs along the river. You can launch kayaks and canoes at the free launch ramp at Mill Creek Point.
SCHMIDT'S WOODS, Secaucus

SKEETKILL CREEK MARSH, Ridgefield
After turning onto Pleasant View Terrace West, go about 100 yards, and marsh entrance will be on your left.
MONK PARAKEETS, Ridgefield
When you reach Railroad Avenue, head south under Hendricks Causeway Bridge. Park car near the bridge and listen; Monk Parakeets live in nests on underside of the bridge.
KEARNY MARSH, Kearny
Camman Drive loops around Gunnell Oval; the marsh is to the east of the easternmost corner of the drive. You can launch kayaks and canoes at this location.
Losen Slote Creek Park, Little Ferry
On Mehrhof Road, turn right just before the DPW garage. Plenty of parking straight ahead and to the right.