Never say never with Lefevers as I am sure that you know. That said the DS grade as a rule did not have indicators. I have seen a few that did and even a few with twist barrels rather than the normal steel barrels that you expect. Look on the water table and see what grade if any is stamped there. Post picture if you can. Not that I myself can but many here can help you if you post pictures for them to see and work with.