For what it’s worth, here are two Walthers living at my house for comparison.
On top is LGV, serial 231788. Per the thread referenced above, this gun may date from about 1966, give or take. The rounded “Olympia” stock is to my eye really beautiful - handles superbly and is an interesting modernized take on earlier classic German styles.
On the bottom is LGVS, serial 244882, from around 1968. Walther fans call this the “UIT” stock - note the shallower, straight-sided fore end compared to your later gun. Again, this stock was shared by late LGV’s and early LGVS’s. Note the straight trigger blade and matte-finished barrel sleeve which differ slightly from the LGV. The paperwork that came with the gun proves it is indeed a “Spezial,” must be a very early one.
Whoever was in charge of buying Walther’s stock blanks should be in the airgun hall of fame, LOL! You seldom see an LGV without eye-catching wood.
BTW both these rifles were re-sealed with an HW 30 seal on an adapter, as mentioned above. They both shoot extremely well.