It appears that Elvis is signing this ladies chest on August 24, 1973 just before the midnight show - The lady is the wife of Swedish journalist Börje (Boerje) Lundgren (the tall guy in the pictures). The last photo shows Elvis with a group of fans in the same suit on August 28, 1973.

Thanks to Patrik for the info - Also thanks to Sly for 3 of the photos of Börje