Reddit reviews German Daggers Of World War II - A Photographic Reference: Army - Luftwaffe - Kriegsmarine

Not a problem. Quanoline and Lakeside Traders both are very beginner sites and the only mention celluloid grips since the rarity of the others. These 2 will require a membership to see the pics but you can read the posts WarRelics Forum where they talk about the types and the rarity. WAF where someone posts a true wood grip and people freak out (or as close as this community freaks out)
If you want books Collector’s Handbook of WWII German Daggers by LTC (Ret.) Thomas M. Johnson is a very good beginners guide, and if you want the advance version German Daggers of World War II - A Photographic Reference: Volume 1 - Army, Luftwaffe, Kriegsmarine.
Wood grips were found on many daggers but only SA and SS would be bare the rest would be covered with leather. Ivory grips on any dagger is usually a once in a lifetime dagger to hold.

I have handled hundreds of German WW2 daggers through collections of collectors and from spending almost a decade working with/for multiple military museums. I have only held one Trolon and have never had the pleasure of a ivory grip. I have seen daggers come out of sock drawers that are mint I have seen some come from basements that have nothing left of the handle and most of the scabbard gone but the blade when pried out was mint mirror. Even with all this hands on. I try not to id daggers from pictures since it is hard and there is almost no way to ID a odd good one from a picture that is this poor. I have seen on at least 5 occasion on Reddit where people have told users their daggers were bad but they were textbook examples of hard to find daggers because they don't know or the pictures were crap. I do apologize if this sounds ranty but this is a hobby and was a job that I enjoy and I would hate to see perfectly good dagger tossed in the trash because they are wrongly identified.