I have no pictures of a 1917, but I reckon any of those for an N frame will fit just fine. And that said, if you'll scroll down to the very bottom of this thread---to the "Similar Threads" section, you'll find several threads listed; and I strongly suspect you'll find more pictures than you can count! As an aside, while there is certainly a typical checkering style associated with Roper grips, I'll stick my neck out and say there is no such thing as a Roper style of grips. They were made with and without thumbrests, with and without finger grooves (mostly without), etc., etc.. Bottom Line: Roper would furnish pretty much any sort of grip you wanted----as in: "You pays your money, and you takes your pick!"
Ralph Tremaine
AND, speaking of paying your money and taking your pick, Keith Brown will make pretty much any sort of grip you wish; although he seems to specialize in Roper replicas. There are really only two significant differences between the original Ropers and Mr. Bown's replicas: Mr. Brown uses vastly superior wood----and produces a vastly superior product----vis-a-vis fit and finish----especially finish. It is likely there are many sets of Keith Brown's works of art which have been placed upon mantle pieces so folks can sit and stare at them----never mind putting them on a gun!!. Mr. Google can put you in touch with Mr. Brown-----Keith Brown Grips.