Nice Dog, whatever happened to that bloke?

Looks like we've found out a lot on this thread. One thing I always wanted to know is at what point did HW change the delux/luxus stock on the 35 from the Bayern Cheekpiece version to the one with the Monte Carlo cheekpiece ala 80. It was some years before the 80 appeared. I've seen the M/C Luxus with serial numbers in the low/mid 700000's but I must admit to never seeing the earlier Bayern stock in the flesh.