For your consideration I present this chromed Arisaka bayonet. The makers marks and accountability number look correct to me, so I think this is authentic. BUt I have never seen a chromed one before. The question I pose to anyone who likes to ponder such things is did the Japanese have parade or dress bayonets? I would have guessed 'no' but then I came across this piece. I have not been able to find anything in the literature I possess to confirm this.
Another theory is that perhaps a US serviceman chromed the bayonet as a war trophy?
Any thoughts gentleman?