"Officers wear ceremonial sword"
Guess what?
I looked through my sprues, and there is no such thing...
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So I decided I had to build some myself. As base I used the Cadian banner bearer and cut the sheath out of plasticard, and I used the handles of the larger Cadian knifes for the swords. The centered handles of the smaller knifes don't work - at least they don't look any good.
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For the hand guard I cut plasticard rings in half