Imperial Gallic A Helmet

[Crispvs]

I would be very cautious about using a Gallic 'A' much past the mid first century AD. Certainly equipment stayed in use as long as it was serviceable and some items did remain in service for a very long time. In a couple of cases we have evidence for things which which may have remained in service (subject to various modifications) for as much as a century. However, such long use must have been extremely rare. If you did decide to use a Gallic 'A' for an impression of the third quarter of the first century AD (or the last quarter if you really intended to stretch it), I would suggest at least one obvious replacement cheek guard and a few dents. Anything that old would definitely look old!