This lock is good for garage doors gate or even garage even from the inside, at least on the outside. It is durable, as massive, and has no arch, where the attacker can insert a crowbar (against whom, as we know, no reception). The principle of operation is similar to that already described structure (“modelist-Konstruktor” No. 8’98), but executed differently.
Is the castle of hull, pin, latch, two pins, screws and key.