This is Version #2 and therefore “2” will be affixed before every stamped serial number to signify these are from batch Version 2, made in 2018. He hopes you also appreciate the attention paid as well.Specs:Dimensions: 2.5' Long X 1.5' wide X 0.5' ThickMetals: Brass, Brass Patina, Copper Serial NumbersFor Collectors: Each single finger brass knuckles is numbered in consecutive order in which it was made. (RTA, being a huge fan of ‘all things blacksmith tools’ has a fine tuned appreciation for the subtle Crosshatching found on the interior surface of a blacksmith’s leg vise (See image), this is his homage to that bit of detail. Limited Quantity Remaining.This 2nd generation Batch is referred to the Anvil Coffin Brass Knuck & shows off a wicked Cross Hatching on opposite side of the Anvil icon. Anvil With No Markings Hay Budden Anvil Serial Numbers