iPhones - Original item or restored from backup?

Morning all,
To save me some time digging around, does anyone happen to know, or have a good method, for determining which content is the "original" when you have two iPhones, with similar content, presumably as a result of a restoration of a backup/profile on a new/alternate phone (whether via iCloud or otherwise)?
Are there any individual flags, or logs, per item, to indicate it's something that's been restored? (in this instance an SMS message being of interest)
Thanks,
Rich