Your search for "n gauge fine manual" revealed the following:

Wainscoting 3.2 x 1.6 x 152 x 609 mm, 1 sheet : Northeastern Wood, non-scale 6508

Bavarian Concertgebouw: Preiser, complete painted N (1:160) 79121

DB Railway Staff : Preiser Pre-Painted N (1:160) 79060

Hexagon Socket Head Fittings, 1.8mm Flat, Tapered : Sakatsu Detail Up Non-scale 4459

U.S. Railroad Officials : Prizer - Finished product HO (1:87) 10547

Sisters : Preiser - Finished product version N (1:160) 79128

People on Amusement Park Rides : Preiser - Painted N(1:160) 79065

Berth (landing place): Prizer Kit HO(1:87) 17315

Poly Syringe U80 (Pack of 6) : Icom Tools PHK04

Angle (L-shape) 2.0 x 2.0 x 558 mm, 5 pieces : Northeastern wood, non-scale 70502

People on horseback : Preiser - Finished product N (1:160) 79183

Very small recessed pins 0.5mm with holes : Sakatsu Detailing Non-scale 4446

Encounter of the Travelers: Preiser - Finished product version N (1:160) 79028

Button switch : Sakatsu Detail up 1:24 3062

Autumn Valley Module : Kazutaku Itoh Pre-painted 1:150 Scale

Prefab Hut A 2 sets : Baioudou N(1:150) Pre-colored Kit ST-019-15C

Embedded pins with holes 0.75mm : Sakatsu Detailing Non-scale 4448

One-story house A : Baioudou N (1:150) pre-colored kit ST-034-15C

People on horseback : Preiser - Finished product N (1:160) 79184

Wainscoting 0.8 x 0.8 x 88 x 609 mm, pack of 2: Northeastern wood, non-scale 70351