Two questions:

1) When do those three demos date from around

2) Any possibility we'll ever see them officially released, perhaps with lyrics to the two instrumentals?

IMO, they're awesome tracks.

Leather Jacket was the opening cut of Taylor's first solo album.

http://www.amazon.com/gp/recsradio/radio/B005197WMO/ref=pd_krex_dp_001_001?ie=UTF8&track=001&disc=001

StickyStones wrote on Nov 12^th, 2011 at 10:27pm:

Two questions: 1) When do those three demos date from around 2) Any possibility we'll ever see them officially released, perhaps with lyrics to the two instrumentals? IMO, they're awesome tracks.

1) Demos from various sessions in the second half of 1970. They were listed as 'Bell Sound' or 'Trident' demos and 'discovered' by accident in late 1972.

2) Every possibility, two other songs from the same era, 'Dancing in the Light' and 'Aladdin Story' (aka 'So Divine') were reworked for the Exile reissue.

For more info on how the 'Trident demos' saw the light of day, see Felix Aeppli's 'Ultimate Guide' - http://aeppli.ch/TUG08/CD1970-1973Up.pdf

Here's the relevant transcript :

LATE 1972  TRIDENT MIXES, COMPILED BY THE ROLLING STONES (ABKCO / BELL
SOUND ACETATE , ALTERNATIVE TO MORE HOT ROCKS), Arrangement Jimmy Miller
A1 Jiving Sister Fanny
A2 I’m Going Down (Jagger, Richards, Taylor)
A3 I Don’t Know Why (Wonder, Riser, Hunter, Hardaway)
A4 Give Me A Hamburger To Go
A5 Downtown Suzie (Wyman)
A6 Blood Red Wine
B1 Travelling Man (Jagger, Richards, Taylor)
B2 Family
B3 Still A Fool (Morganfield)
C1 Family (Retake)
C2 Leather Jacket (Taylor)
C3 Dancing In The Light
C4 Potted Shrimps
D1 Aladdin Story
D2 And I Was A Country Boy
D3 Who Am I?
D4 Untitled
Cuts A1, A3: Recorded at Olympic Sound Studios, London, June 10-July 2, 1969.
Cuts A2, C2, D3: Recorded at Olympic Sound Studios, London, June 16--July 27, 1970.
Cuts A4, A6, B2, B3: Recorded at Olympic Sound Studios, London, May 13-21, 1968.
Cuts A5, D2: Recorded at Olympic Sound Studios, London, April 23, 1969.
Cuts B1, C4, D1: Recorded with RSM, Stargroves, Newbury and/or at Olympic Sound Studios, London,
October 21 onwards and November, 1970.
Cut C1: Recorded at Olympic Sound Studios, London, June 24 or 28, 1968.
Cuts C3, D4: Recorded with RSM, Stargroves, Newbury, and/or at Olympic Sound Studios, London,
March-May, 1970.
NOTES: Circulated on a number of Bell Sound acetates; - A possible album that didn’t make
it into the shops, most likely due to the fact that too many titles assembled here were
semi-finished songs or rough tracks (apparently to be finished at Trident Studios,
London). The Rolling Stones’ TRIDENT MIXES thus would be not much more than a
fore-runner of the METAMORPHOSIS album, much in the style of Andrew L. Oldham’s
NECROPHILIA (see Entry 0.224A above) or Bill Wyman’s THE BLACK BOX (see
Entry 0.263). Fortunately, this fascinating compilation did see the light of day a couple of
years later, albeit in unofficial form. One of the few pressings of the rare 1972 Bell
Sound acetate got lost in the mail and amazingly turned up at a postal auction of lost
and unclaimed packages. And the lucky person who bought this unmarked lot had
bootleg connections. The rest, as they say, is history: THE TRIDENT MIXES bootleg
double album (K & S 072), following the exact track listing of the original acetate,
became an instant classic among collectors; - Cut A6: Labeled as Untitled # 17 (Version 5)
on this acetate but credited to Jagger/Richards as Blood Red Wine in the BMI files.