This papercraft is based on one of the characters from the 3 volume novel "Armored Trooper VOTOMS: Blue Knight Berserga" series that came out between 1985-1987, it was written by Masanori Hama. This mecha papercraft is called the ATM-FX Berserga SSS-X Testa-Rossa.
Robot Papercraft - Berserga Testa Rossa