Got in a collection of early issues of Unspeakable Oath fanzine. Among them was the ultra-rare 1st print of Issue One.
At auction -> https://www.ebay.com/itm/164064405624
Unspeakable Oath was published by Pagan Publishing in their earliest days in support of the Call of Cthulhu roleplaying game.
I’ve sold a number of the later print Orange cover Issue Ones over the years. This is the only 1st/1st I’ve seen. The Premiere Issue is in a digest-sized format, the only UO that would be published that way. The later printings and subsequent issues were in a more squarish format.
Unspeakable Oath, Issue 1 (Call of Cthulhu) – PREMIERE ISSUE
Winter 1990 … John Tynes
The Dread Page of Azathoth; Firearms in Call of Cthulhu; The Ponape Predators; The Road to Hali; Creating and Using Mythos Tomes; Within You Without You; Message in a Bottle.

Interior photos
Oh yeah, the other issues that arrived…
Unspeakable Oath available in the shop
Unspeakable Oath series described at my reference site
See Also: Call of Cthulhu staplebound scenarios & sourcebooks
Deities & Demigods: Cthulhu or not?
Masks of Nyarlathotep, 1st Edition [BOX SET]
Call of Cthulhu: Creatures metal miniatures set (Grenadier, 1983)