Layer Estimates:

Layer: Seamlines_1937 (ID:0)
Count: 228
Extent:

XMin: -8782431.5634
YMin: 4535869.4515
XMax: -8702410.9037
YMax: 4621755.9653
Spatial Reference: 102100 (3857)

Layer: Footprints_1937 (ID:1)
Count: 624
Extent:

XMin: -8782431.5634
YMin: 4535869.4515
XMax: -8702429.7485
YMax: 4621755.9653
Spatial Reference: 102100 (3857)