Industrial Scale[]
From a practical standpoint it makes sense that there was one Industrial Scale system that transitioned from letters to numbers at some point rather then two Industrial Scales as the later would just be a needless complication - as see with GURPS Lensman and its Tech Stages system which, even with the 4e update, requires some work to reconcile with the more common Tech Level system.--BruceGrubb (talk) 17:07, December 13, 2019 (UTC)