Fenwick was built in 1911 as Peckett Works Number 1221 and worked at Canons Marsh Gas Works.
Thanks to a heads-up from fellow volunteer Bob, I acquired this photo from eBay which is dated on the back as 11th August 1949 and shows Fenwick between duties with the mighty gasometer in the background.
Canons Marsh Gas Works Peckett ‘Fenwick’
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