Maybe - is the part number printed on them? I've had luck on a few obscure trim bits for my 710, like the badges and window trim. Just do a search for "Nissan part number" on google, and a few shops will pop up that sell NOS parts, you just need the part number to look them up.
If you can't find the part number, I'll look it up for you when I get home in a week or two.