I've seen some pieces like this(both official Dao and civilian Dao).Maybe the welding between soleplate of head and foreside has fallen.Maybe in the year from Yuan dynasty to early Qing dynasty.

I've seen some pieces like this(both official Dao and civilian Dao).Maybe the welding between soleplate of head and foreside has fallen.Maybe in the year from Yuan dynasty to early Qing dynasty.

也见过几例这样装的(官刀民造都有),可能是刀首底板与前部开焊丢失,老配的.典型制式刀,元至清早都有可能.