Retail. The reason is pretty simple. check both checklists and compare the number of the card. card #56 of the hobby se is "Explosion in the Trench."
For more information on the set and other star wars sets too, go to this link.
http://www.starwarscards.net/1997toppshobby.htm
Checklists on TCDB
http://www.tradingcarddb.com/ViewSet.cfm/sid/73004/1997-Topps-Star-Wars-Special-Edition-Widevision-Hobby
http://www.tradingcarddb.com/ViewSet.cfm/sid/82496/1997-Topps-Star-Wars-Special-Edition-Widevision-Retail
The difference between Hoarding and Collecting is Structure.
~Kris~