British cruiser HMS Undaunted bound for the Mediterranean according to the Weekly Intelligence Summary (W.I.S.) No. 10 dated 12 March 1921

Arethusa-class. Warshipsresearch.blogspot.com

HMS Blake sister ship of Blenheim. Warshipsresearch.blogspot.com

An item reported that the British cruiser HMS Undaunted (1) would leave around 1 April the Nore destined to the Mediterranean to transport the relief crew for the depot ship HMS Blenheim.(2)

Notes

1. Arethusa-class light cruisers, preceded by Active-class, succeeded by C-class. Consisted of Arethusa, Aurora, Galatea, Inconstant, Penelope, Phaeton, Royalist and Undaunted. Laid down by Fairfield Shipbuilding and Engineering Company, Govan, Scotland on 21 December 1912, launched on 28 April 1914, commissioned in August 1914 and sold to be broken up on 9 April 1923.

2. Blake-1st class protected cruiser preceded by Orlando-class succeeded by Edgar-class. Laid down by Thames Ironworks&Shipbuilding Company, Leamouth/London, England in October 1888, launched on 5 July 1890, commissioned in 1891, depot ship since 1907 and sold to be scrapped on 13 July 1926.

Source

The National Archives, Kew Gardens, England CAB-24-121-21