Original image(SVG file, nominally 601 × 601 pixels, file size: 4 KB)

Description: Iowa Highway marker. Uses the standard circle route marker with the FHWA font (type D for 1 digit routes, type C for 2d, type 3 for 3d
Title: Iowa 3
Credit: http://www.erl.dot.state.ia.us/APR_2006/RS/content_eng/rd41.pdf
Author: Scott Onson
Usage Terms: Public domain
License: Public domain
Attribution Required?: No