The leather case I mentioned in my post above is marked with Sharps name and was either made by or for the Sharps company, I am fairly sure. However, I don't think it is the type of case which was originally asked about.

I suspect the truck style case was a one of a kind either ordered by Sharps for a prized retailer or one commissioned by the recipient. I suspect the latter, because I don't believe Sharps would have ordered a case which did not have provision for storing the sights separately.