Looks like a Korean market board, fairly typical for them to have those labels on with no text.
That one with orange stickers was nearly correct - just the orange stickers should have been silver with numbers on like the rest. In terms of collector quality, pretty much the order to shoot for (when talking about Japanese games) is:
1) Japanese made board with original ROMs for the region it was sold in (whatever you prefer, JP, World etc)
2) Japanese made board with different region ROMs installed
3) Korean market board assembled with mostly Japanese parts (sometimes with small cost savings)
4) Korean market board assembled with mostly Korean parts on Japanese PCB (usually with cost savings)
5) Korean licensed boards made in Korea (far lower quality in some cases)
6) Korean unlicensed clones / bootlegs
Behold the minefield. I have lots of Korean boards, the above categories are based on my best guesses based on what I've seen. It's impossible to prove type 3 were manufactured in either Japan or Korea. Type 3/4 are a very grey area, examples I've seen:
Tatsumi Big Fight from Korea - type 3, it came from Korea, it has those typical Korean ROM labels and they're soldered in rather than using sockets. However the PCB is definitely original Tatsumi from the same factory my Cycle Warriors is from, all the parts are Mitsubishi, Hitachi etc. No filter caps are missing, it's identical aside from the sockets thing.
Dogyuun from Korea - type 4, correct ROM labels but many Goldstar and Hyundai components on an obviously original PCB, missing heatsink (very common cost cutting measure), couple of minor TTL filters missing.
Gunforce II from Korea - type 5/6, low rent build quality but some original Irem/Nanao parts, PCB clearly not Japanese but follows exact schematic. Question remains - was it licensed to be a Gunforce II or licensed to be something else? Nobody can tell.
If you're a collector of finest antiquities, type 1 only. Purists type 1/2 only, if you're a realist then most type 3 are fine and some type 4 too. If you're a player then some type 5 are fine but be picky since some are dreadful (like Gunforce II on ebay every week recently). Only buy bad 5s or 6s if you can't afford the real thing and don't want to save up.
@system11: thanks for the info. wo which one is the better option to go for: the fire shark with orange stickers or the one on the picture here in this thread?