Layer Estimates:

Layer: MaritimeCollection2005 (ID:0)
Count: 158
Extent:

XMin: -1185179.40300447
YMin: 6697044.77543921
XMax: -661407.157080949
YMax: 7402333.33220349
Spatial Reference: 102100 (3857)

Layer: MaritimeCollection2014 (ID:1)
Count: 137
Extent:

XMin: -1185242.11380368
YMin: 6697278.11760168
XMax: -660154.408700385
YMax: 7402276.80569032
Spatial Reference: 102100 (3857)