Released in 1923 by Stephenson Blake [Reichardt 2011]. Later (in 1936?) adopted by Monotype. FontShop mentions Deberny & Peignot as the source and gives a 1884 date.
Also produced as dry-transfer sheets by Letraset.
Digital versions by Monotype (two weights) and Adobe. URW’s Modern Script No3 and No4 (1999) appear to be based on the same source, too.