Bulgarian BLG-60M-2 AVLB

One of the AVLB Bulgarian People's Army used during Cold War was the East German BLG-60, built on Czech(Martin) T-55.
The others were the BLG-67(Polish T-55 with East German bridge) and the Czech MT-55.
Some sources indicate that all MT-55, Bulgaria acquired in the early 1970's, were sent to East Germany and upgraded to BLG-60M-2 in the early 1980's.The reason behind this ugrade: the BLG-60M-2 version had wider bridge, allowing it to be used by T-72.
Besides the different chassy(Bumar Labedy), the BLG-67 was identical to BLG-60M-2.
BLG-60M-2 is still in service with Bulgarian Army.