
Peony karakusa tsuba
Executed in "nanban style" openwork with chiseled and gold-encrusted peonies.
Japanese tsuba in Canton style
Also known as Kwanto-gata, with two facing dragon chasing a pearl.
House of Aviz tsuba
A Japanese sword guard with the cross of the House of Aviz.

Nanban tsuba & Asian export sword guards
For long, "nanban tsuba" literally "Southern barbarian sword-guards" have been a catch-all classification for sword guards for Japanese swords (tsuba), that show foreign influence.
A nanban tsuba with Christian orb
A near round tsuba with beaded rim depicting two dragons in vegetal scrollwork.

A nanban tsuba
A rather good example of a Japanese-made nanban tsuba.