from the late seventies ... Miele G 507 !!

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inside isn't that different from current mieles, just the tub is shorter

Left dial is the mains/programme selector (Universal 60°C, Intensive 70°C, Delicate 50°C , softener reactivation, rinse&hold)

Right dial is the timer, 2 cold prewashes, main wash, interim rinse, hot rinse, drying).

Button is the door latch, mains orange light, reactivation alert white light.

 

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very detailed programme chart

Really step by step! each step lasts 30 seconds there are 60 ones.
The circle means drain pump on
Waved (blue) = wash pump on (cold water)
Straight (blue) = wash pump off

Steps 19 and 43 have a thermostop (timer stops until the selected temp is reached)

#30 is the cooldown @ end of main wash

Drying: this is the first Turbothermic drying version : sump with partial cold fill, blower pushing wet air onto this water and exposed heater running 30 seconds every minute

 

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oops....

the middle spray arm was fed from a nozzle in the upper one via a Venturi cone