| .. | ||
| STL | ||
| double-square-key.ipt | ||
| female-square-key.ipt | ||
| README.md | ||
Railway-gadgets
Those keys are used on Italian and Swiss trains.
I remember you that it's illegal to use it on a public train.
Original design was taken on this Swiss law appendix: https://www.fedlex.admin.ch/eli/cc/55/72_76_129/it#annex_B