ire ▁fire box . ▁ ▁Pres ervation ▁ ▁Ill ustration ▁The ▁main ▁picture ▁and ▁the ▁following ▁photograph s ▁illustrate ▁some ▁of ▁the ▁modifications ▁done ▁to ▁the ▁running ▁bo ards ▁of ▁the ▁Class ▁ 1 1 ▁locomot ive , ▁as ▁well ▁as ▁the ▁S AR ▁and ▁industrial ▁li ver ies ▁which ▁were ▁applied ▁to ▁it . ▁ ▁References ▁▁ 1 6 9 0 ▁ 1 6 9 0 ▁Category : 2 - 8 - 2 ▁locomot ives ▁Category : 1 D 1 ▁locomot ives ▁Category : N BL ▁locomot ives ▁Category : C ape ▁gauge ▁railway ▁locomot ives ▁Category : R ail way ▁locomot ives ▁introduced ▁in ▁ 1 9 0 4 ▁Category : 1 9 0 4 ▁in ▁South ▁Africa <0x0A> </s> ▁These ▁are ▁the ▁official ▁results ▁of ▁the ▁Men ' s ▁Tan dem ▁at ▁the ▁ 1 9 5 6 ▁Summer ▁Olympics ▁in ▁Melbourne , ▁Australia , ▁held ▁from ▁ 3 ▁to ▁ 6 ▁December ▁ 1 9 5 6 . ▁There ▁were ▁ 2 0 ▁participants ▁from ▁ 1 0 ▁nations . ▁The ▁winner ▁of ▁each ▁heat ▁qualified ▁for ▁the ▁quarter final s , ▁the ▁los ers ▁for ▁the ▁repe ch ages . ▁ ▁Final ▁classification ▁ ▁References ▁ ▁External ▁links ▁ ▁Official ▁Report ▁ ▁Category : Cy cling ▁at ▁the ▁ 1 9 5 6 ▁Summer ▁Olympics ▁Category : Cy cling ▁at ▁the ▁Summer ▁Olympics ▁– ▁Men ' s ▁tan dem ▁Category : Track ▁cy cling ▁at ▁the ▁ 1 9 5 6 ▁Summer ▁Olympics <0x0A> </s> ▁Jer zy ▁K