Mounting on Plaster Wall?

I want to mount a guitar hook (it has a triangular bracket with 3 machine screws) on a plaster wall with lath on top of brick. What kind of anchor should I use?
(It comes with plastic anchors for drywall but I know from experience that those don’t work well on this type of wall.)

By mmadden | 08/06/2009 11:45 AM