You're right Keith, but I'd guess so does this formula as it's in secondary souces by may 1927.

CGB that formulae you give is staed as a variant of D76a/h ( with 2g Borax) by Kodak, it has Hydroquinone, D103 has no Hydroquininone and is indeed a soft working developer for film sound tracks. Unfortunately there are a huge number of errors in US books all due to mistakes in Morgan & Morgan/Photo Lab Index publications. Only manufacturers data can be trusted.