Mum style comparison
Many new collectors may assume that the mum stamping on the Type 99 receiver is the same for every manufacture. However, detailed examination shows that there is a huge variation not only between the different arsenals, but even between the different series from the same arsenal. This page will show some of the various mum styles found on a large array of different Type 99's and arsenals. With enough study, it's possible to sometimes ID a rifle's manufacturer just from the style of mum alone!