Dent on top tube from handlebar impact. It's rather deep, and the bottom of the tube is pushed out a little.
Top tube broken braze-on cable guide.
Top tube corrosion
Head tube decal
Bottom bracket cable guide is broken off on one end.
If you enlarge this photo you can see the serial number 845. The 4 is very faint. The size is stamped above it. I think it says 56, but the 6 is poorly stamped and looks a lot like 8. The bike measures 56cm C-C.
Chrome facing on the rear of the dropout
Note the chrome facing on the derailleur mount.
Note the corroded spot on the front of the seat tube just below the lug. If you remove the seatpost, you can feel that spot on the inside of the tube also.