Kalkriese mask- ballista mark??

[Crispvs]

5cm (c.2 inches) is actually quite wide for a Pompeii type (even though it has become the standard width for reconstructions carried by re-enactors) and most of the surviving blades which can be reliably measured are narrower than this, so 4cm would still be within the known range for a Pompeii type blade. I agree with you though that the scabbard probably would not have contained a Pompeii sword, as the evidence to date for such blades does not appear to show them being in use that early. I think your choice of the longer 'Caesarian' type was sensible as even if Mainz type blades may have been beginning to be seen by then, some other Augustan period swords, such as the one from the River Ljubljanica, are definitely closer to the proportions of swords like the Delos example.

Crispvs