WA - Anyone know this chestnut Oldenburg gelding?

Rescued at auction this past weekend by Rolling Bay Rescue. They would love and appreciate any history. Approximately 14-15 years old.

https://sphotos-b.xx.fbcdn.net/hphotos-ash3/993302_612798035417980_55956167_n.jpg

Hind left sock - shows in this picture.

https://fbcdn-sphotos-g-a.akamaihd.net/hphotos-ak-prn2/1069936_613546675343116_1975439395_n.jpg

Another headshot

https://fbcdn-sphotos-g-a.akamaihd.net/hphotos-ak-ash3/947210_612798018751315_1341648932_n.jpg

Very thin, feet and teeth were awful. Great big 17+ hh guy. Sweet and kind. Loves mares.

Not branded but sold as an Oldenburg and vet who works at a lot of WB farms thought that was correct too.

Again any info is appreciated and will help him as he rehabs. This is a good rescue that has him and he’ll be back to fat and shiny within a few months.