Penny for Your Thought written by Peter Frampton, off of Frampton Comes Alive
released somewhere around 1975:

Original poster:

Lee Van Dyke
(no current Email address or phone number)

This is pretty easy once you tune to an open G (DGDGBD) the 2 E'S down to a D
and the A down to G.

The first bit is on the high D  starting at the 12th fret,
pull off and then quickly play sliding 3rds on the 2nd and 3rd string
starting at A (3rd str) C (2nd). The other part is ascending 3rds.

: The ascending thirds are played on the 2nd and 4th strings.

The verse part consists of bar chords at the V, III, VII frets.

: The chord is just a flat bar across the middle 4 strings.

Modified by:

Ralph Williams