A display variant of Gill Sans released in 1934, known as Shadow Line (series 290). Released in 1934 [Reichardt 2011] or 1931. [Wikipedia] Known in Germany as Umzogene Gill-Grotesk.[Wetzig 1926]

There’s a freebie digitization named K22 EricGill Shadow Line (2011). In 2015, Monotype included this style in the Gill Sans Nova series by George Ryan and named it Gill Sans Nova Deco (used for sample).