14K Zuni Bear Sterling Bolo Hallmark

very difficult to read to say the least! Any ideas on this hallmark? I am think a trading post or Store mark? Thoughts anyone?

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Hmmm, Is it possible that says Joe (or Jose) Cosa or Casa and Co??? It’s an awesome piece for sure.

Since posting I have found out that this is H T.C. Case & Co. I can find several items on ebay with this hallmark. Anyone know anything about them?