1928 model 62 coupe

I bought an old Chrysler from my Grandma. It has been sitting in a shed for who knows how long (at least 35 yrs.) She thought it was a 1926, but from all of the pictures I can find it looks like a 1928. I have found a stamped number of the engine (4 cylinder) 129640A. Does anyone have any good ideas where to start looking for info on models and years. I need to know exactly what I have before I can start to restore this car. This is my first try and I think I may have bitten of more than I can chew. It is a coupe without a rumble seat, possibly a 3 window coupe?

Any help would be greatly appreciated.

Thanks TMLA(maybe way in over his head)