thanks guys, protocraft is the correct site for the railing. if my memory is correct protocraft purchased it from original developer. tells you why I forgot.
I did not call it hairpin because the hairpin fencing is on modelmemories site under city details and it looks exactly like a hairpin. it is used as a divider between tracks to keep people from crossing tracks at busy terminals. if in doubt ask your significant other if it looks like a hairpin.
nevertheless it is the right thing for prr railings on bridges sides and end of platforms.
thank you all,
mikeg