Thank you for your fast responses guys - much appreciated.
Forgive me, I'm a total newb to these S&W WWII era serial numbers, and even though I read a ton about it today on various websites, I think I'm misinterpreting the 'timeline' post from this website, which was the root cause of my confusion:
"1942: The Victory Models - Revolver production continued, reaching serial number 1000000 on April 24, 1942, whereupon the V-prefix (Victory) serialization was started at V1, reaching (approximately) V210000 at year-end 1942. Grip panels were changed sometime early in 1942 (in the low 900,000 SN range) from checkered wood with medallions to simpler smooth round top wooden stocks without medallions. A sandblasted Parkerized (phosphate) finish replaced the Black Magic oxide finish beginning in early May 1942 at serial number (approximately) 940000 to further speed up manufacture. Due to royalty payment issues, Parkerizing was soon replaced by a similar proprietary phosphate finish. The new S&W phosphate finish was phased in, completely replacing the earlier Black Magic blued finish by mid-August 1942. S&W factory letters refer this S&W phosphate finish as "Military Midnight Black." Whether this was an "official" name is unknown. It has been stated that the majority of all 1942 revolvers produced in the serial number range of V6 to V40000 will be found chambered in .38 S&W caliber, but without any doubt, some in this range were also produced in caliber .38 S&W Special. The first five 1942 Victory-series revolvers (V1 to V5) were made up in .38 S&W Special caliber as presentation pieces, having the earlier commercial Carbonia bright blued finish."
I think what you guys are saying, is that the phrase in bold above says that they 'changed grips around 900,000 S/N' of the *pre-V* serial numbers, not 900,000 in the Victory range.... I was thrown off because of the sentence it came right after, which talks of the beginning of the V1 serial range. But that also makes more sense too, otherwise there'd be almost a million Victory pistols out there with checkered grips, which you don't see. I also understand now that if you see any notation in the 900,000 S/N range, you're talking about pre-Victory guns, per this:
1944 – Victory production reached serial number (approximately) V740000 by year-end 1944, with few changes made in features and finish.
After that it was all SV prefix guns. OK thanks again for helping me run through the timeline changes on that.
Also, I'd agree on the finish; having done different types of home Parkerization on guns in the past, you get to know what Parkerization looks like, I could see my Victory pistol being that magic black finish, as it doesn't really have that greenish nor greyish look to it...With a sample size of one gun though, I'm going to have to trust the experts on that!
Anyway, here are some more photos of my pistol with the grips removed; serial number looks legit to me, but easy enough to stamp wood I guess.
So time to go hunt down some nice smooth grips then?