SoCal: Who am I? 16 hand either Anglo Arab or some kind of WB with Arab gray mare

Rescued a month ago from auction. Manners are impeccable…you could clip her loose. This was almost certainly someone’s show horse.

http://sphotos-a.xx.fbcdn.net/hphotos-prn2/971314_196067697223749_1444788493_n.jpg

16 hands, fleabitten gray, senior (not sure on exact age - I am not great at aging, others think late teens). Clean legged except for old wire cut on hind left pastern. Front tendons perfect. Was ridden through the auction and behaved well but nervous (I would be too). Clips/loads/ties/bathes the best. Extremely beautiful head with huge eye. Loves other horses. No vices at all.

Would just love to know who she is. She definitely had someone who loved her at one time.

Head close up:

http://fbcdn-sphotos-e-a.akamaihd.net/hphotos-ak-ash3/922940_182823165214869_1138700083_n.jpg

Update: Rides amazing. Seems to be a trained western pleasure horse (despite being 16 hands and much more hunter-y looking). Still would love to know who she is!