Freeze Brand Identification SM under a Bar

My wife purchased a 12 year old Black alleged Appendix with a neck freeze tattoo of SM under a bar. He may have been from out west. Never shoed and was on trails for his life is the legend so far. She will train him up to be a lower height eventer after he gets more muscle and training. Does anyone recognize the brand? Thank you for any leads.

Sam's Tattoo.JPG

Turns out my wife’s horse is a Trakehner cross. Still can’t track down the Bar SM freezebrand. He seems to have been well trained, then not treated very well for a period of time, then rescued. Anyone see this brand anywhere?

You might be better off posting in the Breeding section or Off Course where more people will see this.