Non-smoker lungs vs Smoker lungs
Despite all the shocking illustrations of smokers' lungs there is no difference between the lungs of those who smoke and those who doesn't. No autopsist could firmly identify smoker without other signs as fingers and teeth yellowing, bronchus state etc.
The reason is that the lungs of the common urban dweller absorb a huge amount of harmful substances in air which destroy lung tissue just like cigarette smoke. Actually the images like "Healthy lungs vs smokers' lungs" depict the lungs of adult person and the young lungs of healthy baby. People being born and being raised in countryside far from roads and factories also can boast "good-looking" lungs.
Though smoking is really a healthy hazard smoker's lungs look totally like the lungs of non-smoker. Any autopsist can support this fact.