I'll leave it to the pro's to give a final pronouncement but they do look very much like a set of "Far Eastern Pipes"...I only think that because I have looked at the possibility of buying a set and nixed the idea after seeing the negative comments that any suggestion of plunking down good money for a set of them generated.

Since you got them for free, there's obviously nothing wrong with fiddling around with them to see if you can get some sound out of them...there is bag treatment available that would maybe revitalize the bag...but be forewarned that the general sentiment is that it's not worth the time or money to try to get them up and running and they'll never sound or perform like a properly made set of pipes.

Maybe do a forum search to see what previous threads have said.

Best

AA