I would definately say this is a model BLAK (so the first of the two models) based on the fact that it has the shiny top controllers. It also has a pink instruction manual so Id say its most likely a 1972. However, It has brown carts so it would have to be a late 1972. I have had systems that had all this featuresd but a 1975 system. Magnavox wasnt perfect to say the least. If you are looking for a 1972 Id go for it. I think it is a 1972 run 1
The overlays dont really get brittle. Maybe some more single player games will come out in the near future