Most SU sets from about 2004 onwards have gallery index cards. It's often easy to look up SU sets by using the Advanced Search option in the gallery - put a couple of relevant keywords into the keyword field and galleryindex as the username. In this case, good works as keywords and galleryindex would bring this set up. Sadly we don't have index cards for all the sets, but it's a good place to start a search to ID an SU stamp
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