69 K20 with original turbo 350?

[1969k10stepside]

I've always thought and read that 70 was the first year you could get a auto tranny in the 4wds but I was looking at some of the extra glovebox doors I have and one is from a white heavily optioned '69 K20...Options include tow hooks,tach,manual throttle,cargo lamp,no spin rear end,etc.Anyway,could it have been specially ordered with a auto tranny or possibly a late '69 (70 model) that could have came with a auto tranny? Any ideas,I'm just curious about it...On the label it says "TURBO HYDRA-MATIC*" and the VIN is a '69 3/4 ton V8.