User:Master son/Userboxes/WikiProject Iowa State Highways

This template will categorize articles that include it into Category:Iowa State Highways WikiProject Members.

Image takes one parameter - highway marker number (Image will default to blank marker)

NOTE: if the image does not appear - click on the "missing image" then go to the "Commons" page and purge the image (add "?action=purge" to the end of the address of the page)