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Edition Year - 1931
Print Year - 1939

Author - United States Geological Survey

Approximate Original Size (varies) - 16x20

Print Sheet Sizes -
Small - 16x20
Medium - 24x30
Large - 29x36
X-Large - 32x40
2X-Large - 36x45
3X-Large - 44x55

Publisher/Engraver - United States Geological Survey

Academic Title - Robbinston

The print size is the size of the sheet. The map image is roughly centered on the sheet. Margins may be diffenent than the on-line image of the original map due to proportions of the original. For example a 17x22 original map will have wider side margins than pictured when printed onto a 16x1097 sheet

Edition Year - 1931
Print Year - 1939

Author - United States Geological Survey

Approximate Original Size (varies) - 16x20

Print Sheet Sizes -
Small - 16x20
Medium - 24x30
Large - 29x36
X-Large - 32x40
2X-Large - 36x45
3X-Large - 44x55

Publisher/Engraver - United States Geological Survey

Academic Title - Robbinston

The print size is the size of the sheet. The map image is roughly centered on the sheet. Margins may be diffenent than the on-line image of the original map due to proportions of the original. For example a 17x22 original map will have wider side margins than pictured when printed onto a 16x1097 sheet.