On Monday May 2nd, the Mallet will team up with Single Fairlie Taliesin on the 0830 service from Porthmadog.
The loco will also put in appearances around Harbour Station for the duration of the event.
Statfold Barn's Mallet 0-4-4-0T, Jung works No. 4878, was delivered to H. E. Oving of Rotterdam, Netherlands in April 1930 for use on the Jatibarang Brebes Sugar Mill Railway in Indonesia , where it carried No. 9. The Sugar Mill was built in 1842 by the government of the Dutch East Indies colony.
The loco weighs 17 tonnes and is expected to offer performance approaching that of a Double Fairlie, although the loco will undergo exhaustive testing during its stay in North Wales to see exactly what it can do.