[Harp-L] harps used in song??

[TomEHarp@xxxxxxx]

in the song back to get ya. by the j geils band the song is in c he plays 3rd 
position in rhythm section up to the solo then it sounds like he goes to 1st 
position that would be a cv harp.but i just can't make it work.mabe its not a 
c harp????

thanks for any help
tom in ct.