Way I heard it, the soprano Rascher was redesigned off the Martin blank several years ago, but the others were (supposedly) Buescher based.
I never did see a Buescher alto piece so narrow between the rails as the Rascher, tho...most reeds hang off a bit.
I never did see a Buescher alto piece so narrow between the rails as the Rascher, tho...most reeds hang off a bit.