Prime meridian: Washington. Coordinates converted by cataloger to express longitude as measured from the Greenwich meridian. 19 x 47 centimeters, on sheet 25 x 51 centimeters Scale approximately 1:900,000 General Map Collection
Use of this item may be governed by US and international copyright laws. You may be able to use this item, but copyright and other considerations may apply. For possible additional information or guidance on your use, please contact the contributing organization.