Issued by AG für Schriftgießerei u. Maschinenbau in 1900. [Reichardt 2011] Also carried by Van Loey-Nouri as Grotesques [c1914 specimen]
Adopted by Photo-Lettering and shown as Xenotype 3471. [PLINC 1965] Later listed as Neptun with Open, Contour, and Shaded variants. [PLINC One-Liner] Also offered by Lettergraphics as Neptune [Lettergraphics 1968] and by Face Photosetting, also as Neptune, in regular, Rimmed, and Outline styles. Added to Letraset’s Letragraphica range. [1978 ad] [Modern Publicity]
Digitized by Peter Wiegel as Neptune CAT (2014) and by Ralph Unger as RMU Neptun (RMU, 2021).