Dunno 'bout the exact date for the bottom one, but clearly it was taken during his stint in Vegas in August/September 1974. could be backstage, but also might've been taken at Vicky Carrs or Tom Jones show.
He is wearing the same leather suit and necklace as he did in these photos; http://www.elvis-collectors.com/candid- ... vegas.html
showing him going to see Tom Jones in september (the 3rd, I believe).
I also think this photo is from the same time; http://www.elvis-collectors.com/candid- ... vegas.html
Nothing in this world's a 100 %, but I think I'm pretty close
Sorry for the double post, but I ain't no guest