Just acquired a Vz24. The crest on the front receiver ring was was incompletely ground off, but appears to be that of King Carol II of Romania, dating the rifle to some time between 1930 and 1940. I agree with previous posts: the workmanship is very good for a military rifle. The bolt number does not match the receiver's serial number, so this particular rifle may be a salvage job, slapped together after WWII for the third-world arms market.
I am puzzled by the lack of other markings -- there are no proof or acceptance marks from a post-Romanian military customer. Maybe the old girl sat in a Romanian arsenal for decades, forgotten until after the fall of the Communist regime, when it was sold to the importer who brought it over here. Anyway, there is a lot of work to do, but the bore seems sound, and once the stock is refinished (it's a wreck now) and the metal reblued, I expect it will be a great shooter, a good companion to my other oddball Mauser, an FN Israeli Mauser converted in Israel to 7.62 NATO.