[David_Hayward (RIP)]

CKD = Completely Knocked Down; kits of components in crates that when they arrived were a major headache as crates were lost and mixed up.

SKD = Semi Knocked Down; replaced CKD in England after first few hundred CMPs. Basically, as I understand, complete vehicles but disassembled into crates.

SUP = Single Unit Packs; complete vehicles without say bodies, shipped uncrated perhaps

TUP = Twin Unit Packs; two crates. I understand that these were two vehicles in one crate, as against one vehicle in two crates.

I believe that Holden's received CKD, SKD and SUP/TUP crates. Those chasiss that were CKD were components shipped across for complete assembly with Holden-built cabs, thus acquiring Holden chassis numbers. Those shipped SKD etc. were complete vehicles requiring some form of assembly or at the least bodying and thus carried a plate from the original N American plant.