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

Sports Car 3 - Two-Tone : Icom Finished product N (1:150) MLV-6014

Bistro Joukei Vol.1 Bistro Joukei : Sakatsuu (Book) BJ-01

Small Portal Crane : Faller Unpainted Kit N (1:160) 222200

Passer-by : Preiser - Finished product version N (1:160) 79019

Guardrail - A (Green) : Icom Pre-Painted Assembly Kit 1:144-N(1:150) EP-47

Special-needs Vehicle Lift Wagon Car : Icom Pre-Painted N (1:150) MLV-6020

Straw Farmers and Local Railway : Yasuji Ibuchi Modeling work N (1:150)

Stone pedestal, set of 8 pieces of 4 kinds : YSK Unpainted kit N(1:150) Part No.476

Control tower type-B : Sankei Kit 1:144 MK08-02

Wooden fence: Bar Mills unpainted kit N (1:160) 41

Wedding Ceremony Kimono-1 : Icom Pre Painted N (1:150) HM6

Gate - A : Icom Pre-Painted Assembly Kit 1:144-N(1:150) EP-44

Caregiver 1 - Vehicle Section : Icom Finished product N (1:150) MLW-3029

Park Bench : Woodland Pre-painted N(1:160) 2181

Railway Engineer : Woodland Finished product N (1:160) 2147

Construction Site Entrance - A : Icom Pre-Painted Assembly Kit 1:144-N(1:150) EP-53

Loading dock accessories (forklift truck, drums, barrels, crates, gas cylinders): Woodland painted finished product N(1:160) 2208

Scaffolding - A : Icom Pre-Painted Assembly Kit 1:144-N(1:150) EP-52

Campers : Preiser - Finished product version N (1:160) 79230

[Model] Telephone Box Amber Note: Kobaru Equivalent: Sakatsuo Unpainted Kit N (1:150) 3741