How many Cobras entirely built in UK

[strada5300]

I was reading the Nostalgia F1 forum and I came across this about UK market Cobras.
   "127 cars were entirely UK-built of which 50 odd were exported. The first rhd car was delivered to Lord Cross in November 1963 whilst the second, APA 6B, was retained as the factory demonstrator."
   
   I have two questions. Were the 50-odd exported from the UK a mix of RHD and LHD?
   
   Was the number APA 6B the serial number (I would have thought it began with COB) or the registration number (what we Yanks call license plate number?)
   
   Thanks for any illumination,

[nikbj68]

Hi WW. The Cobras entirely built in the UK as RHD would have the COB prefix, LHD would be COX(for eXport)cars and APA 6B was the registration number of COB6005.
   There were 4 CS(X) RHD drive cars also, being CS2030; `63 Le Mans Cobras* CS2130 & CS(X)2131 (of which, only 2131 actually raced!)and CSX3055.
   
   
   *CSX2142, the other `63 Le Mans Cobra was LHD.