I opened the plain white box.  What year were these sold at Sears?  This thing is huge.  I have not seen another set like this one with all the cars, buildings, track layout, and others misc. pieces. I just want any information, not what it is worth.

Looking for some information about a train set that I purchased today.  It is a Bachmann Sears HO train set # 49-95169, Item #476. 

All is there and has never been opened or set up. 
Any information would be greatly appreciated.