Bristow operated at least five Widgeons the first two being conversions which were originally built as WS-51 G-ALIK and G-AKTW. These two aircraft were re registered after conversion, becoming G-APPS and G-APPR respectively in 1958. The other three were built as Widgeons and registered G-AOZD, ZE and G-APTE.
Bristows sent all of these aircraft to Nigeria so
PR became 5N-ABV Jun62, PS became 5N-AGA Jan63, ZD became 5N-AGL Dec60, ZE became 5N-ABW Jun62 and TE became 5N-AGM Dec66. First flight of VC10 ARTA was 29/6/62 APPS is a good candidate.