I have searched all my reference books including the Authorized Guide To Lionel's Promotional Outfits and have been unable to find this set (probably my fault). As it stands now the set contains a 233 Scout Loco with 233W Tender, 6162 NYC Blue Gondola, 6476 Black LV Hopper and 6017 Caboose. The Box is marked 577T and 1646C (picture included). As near as I can figure it is a 1961 Utility Freight set missing a barrel ramp car but the set box seems wrong.
Anyway any help is greatly appreciated.