Those tolerances were hard to make in a toy back in 1958.
Today, in the age of cheap cnc machining, ABS injection moulds can be made very accurately and cheaply. Nearly all knockoff bricks are now a perfect fit, simply because it is pretty hard to mess up these days.
Today, in the age of cheap cnc machining, ABS injection moulds can be made very accurately and cheaply. Nearly all knockoff bricks are now a perfect fit, simply because it is pretty hard to mess up these days.