It is a traveler's note passport size starter kit.
I set a solid color note refill that I made carefully in Japan on a rustic texture cowhide cover made in Chiang Mai, Thailand. Refill is the same size as passport, so it can be used as a passport cover.
Outer box cotton case (made of cloth) cover body (made of cow leather) spare rubber band (red) note refill (64 pages no ruler · stitcher binding)
Size: outer box / H150 × W113 × D16 mm Cotton case H 165 × W 120 mm cover body / H 134 × W 98 × D 10 mm Made in Thailand
NOTE REFILL / H 124 × W 89 mm × D 4 mm
Made in Japan