The source for side 1 is easy to determine. wolfgangsvault lists it at BBC live on April 1, 1975:
http://www.wolfgangsvault.com/peter-frampton/concerts/bbc-april-01-1975.html
Regarding side 2, one can only determine that the performance is from 1972 or later as ‘C’Mon Everybody’ appeared on their 1972 album Smokin’. However, this is not from their May 6, 1973 KBFH broadcast from the Winterland in San Francisco nor any of their BBC sessions.
THE AMAZING KORNYFONE LABEL 