The GAF packet-book was a premium format package designed and manufactured by View-Master's Belgian branch, distributed in the European market, and contemporaneous with the North American G1, G2, and G3 variants. The design was used for the Nations of the World Series, certain feature film titles, and other subjects deemed worthy of special treatment.
While other Belgian-made packets of the time were issued in the familiar envelope format containing reels, inner sleeve, and (sometimes) a booklet, the packet-book style dispensed with the exterior envelope altogether. The package comprised a sturdier than usual booklet printed on coated paper; the three reels were stored in a cardstock sleeve inside the back cover.
The front of the booklet displayed a GAF View-Master logo similar to that on North American G1 and G2 envelopes, a narrow rectangular bar featuring the GAF logo in white lower-case letters against a red background and the words "VIEW-MASTER 21 Stereo Pictures" in white letters against a black background:
The packet number appeared in the lower left corner of the booklet's back cover; a capital letter denoted the language in which the packet was written: