Jim, my response was not intended to be sarcastic, and was only half joking. Dexter and Sinister , often abbreviated D and S are used by doctors on prescriptions for eyeglasses and other descriptive uses, and is as good a reason as I could think of for the different markings on your Hunter One Trigger. An Ideal was a special order gun, as was the single trigger, so Hunter would have marked it as the purchaser requested. I'm sorry you took my comment amiss, as I didn't mean it that way. I also had nothing to do with the deletion of your comments, and had noted that they had disappeared and wondered what happened to them. I couldn't translate the Latin phrase, as my last Latin class was about 53 years ago.