I live in the northern suburbs of Perth but haven't seen it pop up at any toy collectors fairs or anything in the last couple of years, including those up this way.

Not much help I know, but as others have said, if it was sold in a garage sale it's hard to say if an appreciative collector got their hands on it, or if it went to some kid. I'd like to think though, that an adult, upon seeing a toy signed would think that it would be a collectable.

I'll keep my eyes open for it though. There's another collector's fair in the northern suburbs next weekend so I'll let you know if I spot it.

Sorry I can't be any more help.