This looks like 1967-69 ish.
I had the BOL vers. in an apartment I rented in 1988. It was original to the building.
It only had 2 buttons and the slim "control panel", though the knob FLOATs in the door panel. (?) I always thought that was weird. Same with Kitchen-aid and Maytag from the 60s. Knobs on the door panel, even in the access panel.
Anyway, They replaced by BOL avocado GE DW, complete with peeling plastisol liner and rusty racks because, when you turned it on, it sounded like an air plane was taking off.
Replaced it with a new plastic, BOL, Almond GE, with black console.