I keep leaning more and more towards a period of spike/blade concurrence. It might have been a week or two...using up old parts, transitioning to new parts...I doubt there was someone making sure there was one gas block to every receiver latch, but I also doubt they would waste anything...so as new developments came along, they implemented them....and there may have been a period of hodge podge components...possibly more than once where you will find original components that don't fit the cookie cutter version of what each year is supposed to have for their components.
This is why we research, and it seems like little by little we make progress. I look forward to finding out more...and finding another 50 spiker wouldn't hurt. The main thing is trying to make sense of the serial progression. Secondary is trying to determine what
WOULD be done at refurb...vs what
COULD be done at refurb. Since rebarreling even non chromed barrels didn't seem to happen at all or if so, rarely...it seems likely that very little that resides on the barrel would every require replacement either....since many other can's o' worms get opened in doing so when dealing with the slight variations that make 49s and 50s incompatible...in the most pissantly miniscule ways.
I think folks have a tendency to lean towards year models for guns being like year models for modern cars. The minor changes asserted towards years may be tainted with weird guns like yours...where parts were being used until they were gone, while new changes were being implemented. Where modern thought gives you the idea that you won't find a 92 bumper on a 93 truck....despite them sharing an identical
almost bolt pattern that could be fudged to work.
(as I was typing RM posted that 50...one photo shows a potentially saggy bayonet that might have been forced into position by the photographer in the previous photo. There is an unblued sight leaf, which isn't uncommon...but certainly isn't original. The stock doesn't look to be the slender forend type like the normal spiker, but more akin to the blade type....probably reworked/fashioned to fit a spike. It is also double pinned...so perhaps they had to reinforce that area to route out some more stock to allow for the spike? I have a double pinned Russian I bought simply because I thought it might have been a reworked 49....
Also....this has a top pinned stock ferrule. That is not what goes with a spike.....so why would they leave the spike and replace the ferrule? It is the opposite of my problem with my 49/50 debacle.
Joy...
I am also not entirely convinced that isn't a M44 bayonet....I faked one for kicks for mine....looks and sags very similarly.
I do not see a rivet on the mag from either angle...so that says something too....49/50 parts convergence maybe?
I would want to see about a dozen photos that aren't there for some more exacting evidence. I think the main thing to look for now is the pin placement betwixt 49 and 50 FSBs....which is where I think I found evidence of a difference. Most folks don't get to tear apart these guns...and try to restore them. Unless someone could convince an ex employee of Westrifle to admit they 'made' some 49s...and ask about the pins on those FSBs...we might never know.
The original FSB on my 49/50 thing looked like a flawless bayonet delete job....and the pin placement matches no other I have seen. Makes me wonder if they considered not having bayonets at all...it probably was Kalifornia...but it looks designed that way to me....the rear pin placement from a known early 50, and a known 51 do not line up. Those both shared the same pin placement as each other....but not to my gun. That and the pain it was to fit a 50 cover vs a 49 are the two things that make me think mine was a 49 blade...originally. Otherwise, I would lean more towards mine being an early 50.