question about "5" prefix on TR4a serial #

["Dave Terrick" <dterrick@pangea.ca>]

Hi all,

The header says it all.  Recently I have re-discovered this anomaly about
5CTC 53xxx,  my 65 TR4a IRS under suspended restoration.  I have had little
if no success at finding, never mind using, the archives.  Maybe I'm just
running on a Lucas brain.

Can anybody who recalls the discussions about CKD kits shed light on the
prefix "5" - lest I be forced to spend a rocker panel's worth on a heritage
certificate?

Dave T
Winnipeg