[Myrddin]

Check the state 12xxx series law in CA. You'll probably find much of your collection would get you arrested if you carried it on a public street. Check the unlawful carrying link.

[Ramius]

Well... I don’t live in CA (thanks to a merciful God). But sure... carrying swords openly on the street is generally a problem.

Though... as a practical matter I do end up carrying them around in vehicles and such from time to time.