Layer Estimates:

Layer: 1850 (ID:0)
Count: 4
Extent:

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Spatial Reference: 102100 (3857)

Layer: 1900 (ID:1)
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Extent:

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Spatial Reference: 102100 (3857)

Layer: 1920 (ID:2)
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Extent:

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Spatial Reference: 102100 (3857)

Layer: 1952 (ID:3)
Count: 1
Extent:

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Spatial Reference: 102100 (3857)

Layer: 1962 (ID:4)
Count: 1
Extent:

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Spatial Reference: 102100 (3857)

Layer: 1978 (ID:5)
Count: 1
Extent:

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YMin: 715951.19330638
XMax: 385136.890292398
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Spatial Reference: 102100 (3857)

Layer: 2000 (ID:6)
Count: 1
Extent:

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XMax: 385142.424286124
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Spatial Reference: 102100 (3857)