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List of "Unidentified" Portable engines.

The UPxx coding has been used by the Road Locomotive Society to Catalogue Portable engines which on initial inspection had no clear serial number / identity visible, as often the 'brass plates had been removed/ stolen with other parts. Many have subsequently been identified by experts against surviving build records and numbers stamped on the remaining parts such as boiler nos., crank numbers or discovery of the serial number stamped on the machine body during cleaning or dismantling for repair. The UPxx number is NOT an official number stamped on engines it is just used to keep track of them and once the real identity is established owners usually fit a new replica serial number plate with the manufactures name and number on. There are about 120 such engines listed in The Traction Engine Register 2016 edition + about another 30+ engines with no ref number, just a U/I code of which most are also portables. Many portables have been discovered and repatriated from South America, Africa and Australia were large numbers were exported to when new for use on estates and sugar plantations.

Note:Some makers did not record/use serial numbers on their products.

Many have also been allocated Txx numbers by Preston Services when recovered from around the world. These can be seen painted on engines in their stock but usually disappear during restoration.


Uidentified Portable engines (UPxx)
UP No. Maker Name Build Date Owner Image Other info
UP1 make name year owner 100px Tractor & Construction Plant Wiki:Requested images


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UP2 make name year owner 100px Tractor & Construction Plant Wiki:Requested images


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UP3 Brown & May Little Draggon year owner Brown and May PE -Little Dragon at Ellenroad mill IMG 8342 info
UP4 make name year owner 100px Tractor & Construction Plant Wiki:Requested images


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UP5 make name year owner 100px Tractor & Construction Plant Wiki:Requested images


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UP6 make name year owner 100px Tractor & Construction Plant Wiki:Requested images


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UP7 make name year owner 100px Tractor & Construction Plant Wiki:Requested images


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UP8 make name year owner 100px Tractor & Construction Plant Wiki:Requested images


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UP9 make name year owner 100px Tractor & Construction Plant Wiki:Requested images


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UP101 make name year owner 100px Tractor & Construction Plant Wiki:Requested images


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UP119 Marshall name year owner 100px Tractor & Construction Plant Wiki:Requested images


in St. Austell, Cornwall
UP1 year owner 100px Tractor & Construction Plant Wiki:Requested images


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UP1 year owner 100px Tractor & Construction Plant Wiki:Requested images


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UP1 year owner 100px Tractor & Construction Plant Wiki:Requested images


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UP1 year owner 100px Tractor & Construction Plant Wiki:Requested images


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UP1 year owner 100px Tractor & Construction Plant Wiki:Requested images


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UP1 year owner 100px Tractor & Construction Plant Wiki:Requested images


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