▁the ▁US , ▁this ▁type ▁is ▁known ▁as ▁the ▁Union ▁after ▁the ▁only ▁US ▁rail road ▁to ▁have ▁new ▁locomot ives ▁built ▁in ▁this ▁arrangement . ▁These ▁were ▁ten ▁ 0 - 1 0 - 2 s ▁built ▁for ▁the ▁Union ▁Rail road ▁in ▁the ▁Pitts burgh , ▁Pennsylvania ▁area . ▁ ▁They ▁were ▁used ▁as ▁heavy ▁duty ▁transfer ▁locomot ives ▁rather ▁than ▁switch ers . ▁In ▁Green ville , ▁Pennsylvania , ▁one ▁is ▁on ▁static ▁display ▁letter ed ▁for ▁the ▁D ul uth ▁Miss abe ▁and ▁Iron ▁Range ▁Railway ▁# 6 0 4 ▁( U pon ▁dies el ization , ▁the ▁Union ▁R R ▁sold ▁all ▁of ▁their s ▁to ▁the ▁DM & IR ) ▁. ▁ ▁The ▁Chicago ▁& ▁North ▁Western ▁Railway ▁converted ▁two ▁ 2 - 1 0 - 2 ▁locomot ives ▁formerly ▁owned ▁by ▁subs idi ary ▁Chicago , ▁St . ▁Paul , ▁Min ne apolis ▁& ▁O ma ha ▁into ▁ 0 - 1 0 - 2 ▁locomot ives ▁in ▁ 1 9 4 4 . ▁They ▁were ▁class ified ▁J - 1 ▁both ▁before ▁and ▁after ▁conversion . ▁ ▁One ▁was ▁scra pped ▁in ▁ 1 9 5 0 ▁and ▁the ▁other ▁in ▁ 1 9 5 3 . ▁ ▁Europe ▁▁ ▁In ▁Germany , ▁a ▁number ▁of ▁narrow ▁gauge ▁tank ▁locomot ives ▁were ▁built ▁with ▁an ▁ 0 - 1 0 - 2 ▁configuration . ▁ ▁All ▁used ▁some ▁form ▁of ▁art ic ulated ▁drive ▁that ▁allowed ▁the ▁outer ▁driving ▁ax les ▁to ▁move ▁side ways