Help needed dating a Peel Show

[Andy]

Please find links to the 2 other 1968 Top Gear clips below.Some of 
John's links are missing,whoever recorded the shows,back in the 
day,must have only wanted the music,and not John's chat,what a shame !
Thanks for the advice re uploading and dating from Steve.I have loads 
more tapes to go through so there may be more goodies to come.

http://www.megaupload.com/?d=QVF6UMAE

http://www.megaupload.com/?d=PG56TOD4

Please could anyone advise me as to which rare or missing session 
tracks to look out for from the 1968 onwards.