Sgts’ Mess is currently migrating their website and will be back soon.
From the update:
Following a problem with website migration, Sgts Mess have asked me to let you know that they will be back online as soon as possible.
In the meantime they are still selling products, and can be reached via telephone (01256 770025) or a temporary email (firstname.lastname@example.org)
It is also possible to purchase Sgts Mess products online via the Table Warfare website