Great theme, I have so many suitable images it's difficult to choose just one, but here goes.
This is 'Brookfield', a tank engine (meaning it carried its own fuel and water instead of these being in a tender pulled by the locomotive). Brookfield was part of an order by Turkey for several of these locomotives, just prior to WWII. The war prevented delivery and Brookfield, then simply called 'tank engine 2613', was used by Brookfield foundry for hauling castings in Naval dockyards. It was retired in 1963, and left to quietly rust until bought for restoration by my friend in 1983. Over the next few years 2613 was restored and renamed 'Brookfield' after the foundry.
This image is of a 'happier' restored Brookfield, playing the part of the more famous tank engine 'Thomas'!