This is a Lionel O Gauge Pennsylvania GG-1 Electric Locomotive 

O gauge.  Lionel #8753

engine is operational - moves forward and reverse and the reversing unit is working.  (moves VERY well - this is a strong engine)  Lights work, both pantographs like new.  Some small body imperfections and paint blemishes - see pictures for specifics.  Overall very good to excellent condition for it's age.  Box is good - with the usual shelf wear but no rips

This engine has obviously been used - both pick-up rollers are slightly grooved.  Still looks really good 

This is from an estate sale - The trains have been stored in a basement for 20+ years and as such may have some dust/dirt on/in the boxes.  Sold As IS - most of the trains I am listing have not been run on a layout in 25 years (if at all).  I take them out of the box and test them for function - then list them.  I will NOT take a return on an engine that stops working AFTER you have run it a few hours.  These trains are 25-50 years old and may have issues - I am NOT a train retailer and as such have done NO service/maintenance on the train being sold.  If you uncomfortable with this policy then I recommend you buy a NEW train.