All flashpoint/operations trophies are essentially exactly the same. Each one consists of a picture of the defeated boss with a bronze frame (story mode), silver frame (hard mode) or gold frame (nightmare mode – ops only). The story mode version is also significantly smaller than the hard & nightmare mode versions. Story mode versions can be placed on Wall Small hooks. Hard/Nightmare mode versions can be placed on Wall Medium and Wall Large hooks.
You can purchase story mode flashpoint trophies that you have earned for your guild for 10,000 credits. Hard mode flashpoint trophies cost 100,000 credits. You can only purchase nightmare mode operations trophies for guild strongholds, which cost 1,000,000 credits.
NOTE: With 5.0, Hard Mode changed to Veteran Mode and Nightmare Mode changed to Master Mode.