DescriptionGunboatPhiladelphia.jpg Nederlands: This work is in the public domain in the United States because it is a work of the United States Federal
statement has role: photographer author name string: Library Company of Philadelphia Flickr user ID: 26491575@N05 URL: https://www.flickr.com/people/26491575@N05
micrometer wheel wa amoved
by a milled edge hard rubber wheel of abo ,; •_« jpg
diameter. The micrometer screw an i wh. ei re
sponded so delicately and accurately