What's it for?

[RUBBLE]

Hey guys,
 striped out the engine bay in the old wagon and came across a bracket on the inside of the inner gaurd,have no idea what it is.it looks like its made of a rectangle piece of aluminum with two tubes on it holding two spark plugs.any ideas???cheers rubble

[ACE]

 ;D ;D ;D NASCO? SPARK PLUG HOLDER ;D ;D ;D
ACE  8)

[RUBBLE]

thanks ace,
are they rare?is it worth hanging on to?
cheers rubble