Ephemera: Amazing Filipino? Band (c.1930)

This amazing group has, frankly, an amazing assortment of instruments. Check out the 12-string guitar banjo! ...followed by a 12-string banjo-bandurria, two old-style steel-strung guitars, a regular pair of bandurrias, Filipino-style laud, a uke, musical saw, and... and... some crazy-as-heck bass guitar! I'm guessing it's related to the Mariachi-style basses considering the positioning and 6 strings (well, 5 strings on it, and 6 tuners).