Adam, the Ugartechea is not a Mod 1040 but a Mod 1030 Kyrie can confirm that. The Mod 1040 have Purdey locks.
Marc.
Thats a good comment; I think the gun pictured probably is a Model 1030 rather than a 1040. Most folks are not aware that Spanish side locks may not have H&H locks, much less that Purdey locks were available.
This is another difference between Spanish guns made today and those made before roughly 1970. Back in the 1960s, and earlier, many of the gun makers offered a choice in which kinds of locks they would use when making a gun. Purdey locks were more highly regarded than H&H locks, and many top price point guns were ordered with Purdey locks (which the Spanish refer to as Llaves de 4 Pilars).
Here are pictures one such gun, a Victor Sarasqueta Hispania Model 213:
Here is a picture of the lock, with the four pillars circled:
Here are the lockworks:
