Twin testing kit, Utah, United States, 2000
2000
2000
1842-1889
1842-1889
1842-1889
1842-1889
1842-1889
1842-1889
1842-1889
1842-1889
1842-1889
1842-1889
1842-1889
1842-1889
1842-1889
circa 1960s
2000
1982
1842-1889
1842-1889
1842-1889
1842-1889
1842-1889
1842-1889
1842-1889
1842-1889
1842-1889
1842-1889
1980-1990
unknown
1968
1842-1889
ca. 1960s
circa 1960s
1988
1988
1988
1988
circa 1960s