Pneumatic tired rollers 2002 United States, Columbia, Maryland
Single drum rollers 2008 1,521 h United States, Annapolis, Maryland
Single drum rollers 2013 2,130 h United States, Baltimore, Maryland
Twin drum rollers 1990 United States, Columbia, Maryland
Twin drum rollers 1,542 h United States, Annapolis, Maryland
Single drum rollers 2020 United States, Baltimore, Maryland
Single drum rollers 2020 422 h United States, Baltimore, Maryland
Single drum rollers 1998 United States, Baltimore, Maryland
Single drum rollers 1984 3,191 h United States, Annapolis, Maryland
Single drum rollers 2020 400 h United States, Netherlands
Single drum rollers 1989 United States, Crofton, Maryland
Single drum rollers 2020 United States, Crofton, Maryland
Single drum rollers 1,722 h United States, Annapolis, Maryland
Single drum rollers 2023 United States, Wembley, Maryland
Single drum rollers 1992 United States, Baltimore, Maryland