early elvis recordings go on sale some of elvis presley s earliest recordings - including takes of all shook up - are going under the hammer on sunday at a los angeles auction.  the six unedited reel-to-reel tapes - which were owned by the engineer who recorded them - are valued at up to $50 000 (£29 000). highlights of the two hour-long collection will get their public debut at bonhams auction house on saturday. the rca tapes date from september 1956 to september 1957. the  pre-masters  include a take of jailhouse rock  religious songs  material for his first christmas album  and banter between presley  members of his band and engineer thorne nogar.   we ve had them for a lot of years  and i think the people should enjoy them   nogar s son stephen  57  said.  and frankly  we could use the money.  nogar  who died in 1994 aged 72  always used to make two tapes of sessions as a back-up in case rca producers wanted to make late changes to songs.  he called them his ass-saver tapes   his son said. the quality is said to be noticeably crisper than that of a new vinyl record. because the family does not own the copyright to the music  the tapes can only be sold for  personal enjoyment  and they cannot be copied for commercial gain.