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

Crew : Preiser - Painted N (1:160) 79137

2-story house (both north and south entrances) B : Miniature Kobo Kit N (1:150) PKNS1005B1

European Fence-C : Icom Pre-Painted Assembly Kit 1:144-N(1:150) EP-36

Falling Rock Fence - A : Icom Pre-Painted Assembly Kit 1:144-N(1:150) EP-46

Military Accessory-1 : Icom Prepainted Assembly Kit 1:144-N(1:150) EP-6

Food Stall/Drying Dryer : Icom Pre-Painted Assembling Kit 1:144-N(1:150) EP-16

Arched Car Stop-A : Icom Pre-Painted Kit 1:144-N(1:150) EP-49

European Fence & Gate : Icom Pre-Painted Assembly Kit 1:144-N(1:150) EP-13

Welders and Tools : Woodland Pre-Painted N (1:160) 2157

Brick Arch Bridge : Norihisa Matsumoto - painted 1:150 size

Cargo Conveyor 2 : Icom Prepainted Assembly Kit 1:144-N(1:150) EP-4

Lattice - A : Icom Pre-Painted Assembly Kit 1:144-N(1:150) EP-35

Let's Play Layout: How to Create Miniature Scenes: Neko Publishing (Japanese Book)

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

Farm and Lift Line : Yasuji Ibuchi Modeling work N (1:150)

Compact Car Postal Vehicle : Icom Finished product N (1:150) MLV-6021

Telescopic Gate - A : Icom Pre-Painted Assembly Kit 1:144(1:150) EP-45

Penguin Material G (small size 2) : YSK Unpainted kit HO (1:87) Part No. 407

2-story house (both north and south entrances) D : Miniature Kobo Kit N (1:150) PKNS1005D1

Guardrail 1 : Icom Pre-Painted Assembly Kit 1:144-N(1:150) EP-2