Originally Posted by CPMcGraw

This may not be a complete list, but it's all I could pull out of the XEKL on short notice:

#1235 Sky Writer #2
#1260 Sky Writer #2 (same kit, different package)
#1328 Kadet
#1333 Scorpion (used 2 fin units)
#1418 STAR TREK (starter set)
#1420 STAR WARS Proton Torpedo (starter set)
#1438 DUNE Guild Heighliner (starter set)
#1993 Lancer
#2026 Athena
#2042 America

As for whether all of these are the same, I think there are some differences in the molds, but that they represent the same fin units. Much like all of the different variations in the PNC-50K nose cone over the last 40 years...

Hope this helps...