Why does this RARE CUTLASS have TWO cutting EDGES?

Get 20% OFF + Free International Shipping @Manscaped with code SCHOLA at http://manscaped.com/schola #manscapedpartner Why do these RARE naval cutlasses have two edges instead of the more normal single edge? ▼3 extra EXCLUSIVE videos each month on PATREON, which make this channel possible: https://www.patreon.com/scholagladiatoria ▼Facebook & Twitter updates, info, memes and fun: https://www.facebook.com/historicalfencing/ https://twitter.com/scholagladiato1 ▼Schola Gladiatoria HEMA - sword fighting classes in the UK: https://www.swordfightinglondon.com ▼Matt Easton's website & Pinterest: https://www.matt-easton.co.uk/ https://www.pinterest.co.uk/matt_easton/_saved/ ▼Easton Antique Arms - antique swords for sale: https://www.antique-swords.co.uk