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

Hexagon Socket Head Fittings, Double Dia. 1.8mm Flat, Tapered : Sakatsu Detail Up Non-scale 4458

Angle (L-shape) 3.2 x 3.2 x 558 mm, 5 pieces : Northeastern wood, non-scale 70504

Penguin Material B (Movement) : YSK Unpainted Kit 1:100 Scale Part No. 402

Spirited Away [Clock Tower] : Sankei Kit N(1:150) MK07-27

Handrail knobs, height 1.7mm, for 0.4mm lines, pack of 6 : Sakatsuo Detailing Non-scale 5004

Coin-operated rice mill : Sankei Kit N (1:150) MP04-76

Showa-era Scene - Bus Depot : Keichu Matsuo Diorama work 1:80 scale No.11

Brass pipe outer diameter 1.5mm inner diameter 1.2mm : Sakatsu Material Non-scale 4635

Aramono-ya : Baioudou N (1:150) Unpainted Kit ST-002-15U

Hexagon Socket Head Fittings Double 1.2mm Dia: Sakatsu Detail Up Non-scale 4454

American mounted policeman : Preiser - Painted N(1:160) 79149

Hikoroichi Station type : Showa Romando Special Finished 1:150 scale

Children playing with grass baseball [part 1] : Woodland Finished product set N(1:160) 2145

Hexagon joint, flat diameter 0.8mm (for 0.4mm wire) : Sakatsuu Detail Up Non-scale 4468

Pile of Sleepers 2pcs : Bel Airline Pre Painted N(1:160) 1811

Channel (U-shape) 4.0 x 7.9 x 558 mm (2 pcs.) Northeastern wood, non-scale 70547

Square/flat wood 1.2 x 1.8 x 279 mm, 12 pieces : Northeastern Wood, non-scale 3031

Diver : Preiser - Painted N (1:160) 79088

Autumn Leaves Trees 3-5cm Over 60 trees : JTT Finished product Non-scale 95521

Corrugated sheet 2.4 x 1.2 x 88 x 609 mm, 2 pieces : Northeastern wood, non-scale 70436