Waffle top? There are fine lines etched into the top of the receiver.... not exactly "waffle" pattern, but I am going to infer that this is what you are saying.
But no... this thing appears to be unmodified...no holes drilled on top.
Just that darn butt plate.
This thing is a beater, right?... I mean, I've never owned an older rifle before. To me, it is really cool to think of it being from '49 (or '50)... but in reality, I guess it is nothing special.
With that, I should probably not concern myself too much with being careful with it or trying to keep it restored to it's original form. (not that I have any big modification plans, but also, don't want to be fussy or overly careful with it either)