Wolverine pops his claws two pages after the one you posted, and they still appear to be coated with metal, presumably adamantium.
X-Men Annual Vol. 1 #11 (November, 1987)
I checked the issues of Uncanny X-Men immediately following the annual, and while I didn't notice a specific reference to adamantium until Uncanny X-Men Vol. 1 #227 (March, 1988), which was published a few months later, his claws still look metallic in every issue they're visible in around that time, and his bones were stated to be unbreakable.
The fact that he had claws at all is a significant clue that he still had the adamantium, as around the time X-Men Annual Vol. 1 #11 was published (November, 1987), it was thought that his claws were made of solid adamantium, having been implanted during the Weapon X program. Note that the Official Handbook of the Marvel Universe entry quoted below was published the same year as the annual.
Apparently at the same time that Adamantium was bonded to his skeleton, Wolverine was also equipped with his solid Adamantium "claws." The claws are each roughly a foot long, the length of Wolverine's forearm. He is equipped with three claws on each of his arms. The claws are connected directly to his skeleton and to his nervous system.
Official Handbook of the Marvel Universe Vol. 2 #14 (January, 1987)
It wasn't revealed that he had bone claws beneath the adamantium until Wolverine Vol. 2 #75 (November, 1993), published six years after the annual in question.
WOLVERINE: Darlin', there's things about myself I ain't got clue one about... like, if these claws o' mine are bone -- then I must've been born with 'em! How come I can't remember them before they was bonded with adamantium? How come I always thought they were implants?
Wolverine Vol. 2 #75 (November, 1993)