<WTB> B+W 43mm MRC KR-1.5 Skylight <WTB>

I am looking for B+W 43mm MRC KR1.5 Skylight to use on my Konica uc-hexanon 35 2. If somebody have please let me know. I am fine with brand new in box or second hand.

Prefer US seller.

Best regards,
Kevin