Annuals for the 1981 volume of The Uncanny X-Men.
Issue 16 was the first issue in the series to have the "Uncanny" part mentioned in the indicia. The first 15 issues where known as X-Men Annual Vol.1 The series lasted until the year 1994, after which each issue received it's own unique title;
Uncanny X-Men '95Uncanny X-Men '96Uncanny X-Men '97Uncanny X-Men / Fantastic Four '98Uncanny X-Men 1999Uncanny X-Men 2000Uncanny X-Men 2001The title resumed as Uncanny X-Men Annual in 2006.
Collected EditionsX-Men: Shattershot (#16)X-Men: The Wedding of Cyclops & Phoenix (#18)
— Description from Comic Vine community (comicvine.gamespot.com · https://comicvine.gamespot.com/the-uncanny-x-men-annual/4050-10757/).