Considerations
If you're more interested in the style of the Civil War sword than authenticity, then it is both easier and more affordable to look into sword replicas. Collecting real antique Civil War swords should be reserved for those collectors looking to own something that was actually used at the time, and for people who only want genuine weapons.
Identification
It's important to know all the different types of swords used during the Civil War and what they were used for. All kinds of swords were used in the Civil War, from artillery swords to cavalry swords. You can sometimes identify these swords based on the handles.
Features
Beyond identifying the swords, it's essential to know who handled the swords and when they were typically used. For example, although some swords were used as weapons, many were simply intended to show the rank of an officer.