Shipbuilding Tools for the Middle Reaches of the Tamagawa River

In the midstream area of the Tama River around Inagi City, various types of riverboats have been used since the Edo period. The types of riverboats include houseboats, ferryboats (large horse-drawn boats and small transport boats), fishing boats, gravel boats, and construction boats, and since the 20th century, wooden rowboats have also been used. Due to the relatively shallow water depth in the midstream area of the Tama River, flat-bottomed and shallow boats became common. The construction of these riverboats was carried out by specialized shipwrights. Mr. Tomizo Kuboi, a shipwright residing in Higashi-Naganuma (born in 1906, passed away in 1993), began his apprenticeship under his father around 1921 and built various types of riverboats until 1990. After Mr. Kuboi's death, 4,708 shipwright tools used for riverboat construction were donated to the Inagi City Board of Education. These materials are valuable cultural assets that convey the construction techniques of riverboats closely related to transportation, recreation, and livelihoods around the Tama River, and are indispensable for considering the life and culture of the midstream area of the Tama River. Therefore, they were designated as tangible folk cultural properties of Tokyo on March 16, 2020.

Tools for River Boat Construction (671 items)

Category	Tool Name
Sawfish	Gagarinoko, Suriawasenoko, Chumenoko, Koba, Ryobano, Mawashibikinoko, Arabiki, Daiko, Obinokogiri no ha, Nokogiri o tsutsunda hanpu
Fleas	Tatakinomi, Hiranomi, Marunomi, Tsukinomi, Nomi
Swallows	Ryotsubanomi, Katatsubanomi (for ship nails), Katatsuba (for round nails)
Canna species	Hiraganna, Hiraganna (bean), Hiraganna blade, Hiraganna maegane, Maruganna, Sotomaruganna, Koganna, Mizokanna, Hantaikanna, Convex plane, Convex plane (bean), Suji-kai, Waki-tori kanna, Dainoshi kanna
Genus Gennou	Oogenno, Chuugenno, Shougenno, Genno, Hammer, Kanazuchi, Iron Hammer, Tatakidashi
Chouna Masakari Species	Chouna, Masakari, Yoki
Measuring Instruments	Sashigane, Sumitsubo, Sumisashi, Juugane, Hine (ruler), Rokushakubou, bamboo pieces, bamboo measuring tools, ruler, Kebiki
Kasugai	Kasugai, Kasugai-shaped fittings, Kasugai containers
Bolts and Nuts	Bolts, nuts, round rings, square rings, bolt wrenches
Leveling tools, etc.	Level, plumb bob, water line reel
Other Tools	Nail puller, chisel, pry bar, giraffe, hammer, hand tool, file, boat drill, manual drill, electric drill, drill bit, metal scissors, pliers, scissors, crowbar, jack, claw, wrench, chisel-like tool handles and parts, machine tools, bolt turning tools, tool parts, trowel, flathead screwdriver, iron wedge, iron rod, cutting tools
Other Materials	Repair materials for the bow type of houseboats, kanashiki, shiki, makihada, sawdust, sleepers, toolbox, whetstone (with base), U-shaped magnet, memo notebook, workshop blackboard, legged workbench, wooden workbench, legged scaffolding board, paint container, broom, migo broom, dustpan, coil, copper plate, wire, iron stake, breaker, sandpaper

Ship Nails (3138 items)

Category	Tool Name
Ship Nail	Kailorikugi, Otoshikugi, Netsukekugi, Zinc-plated Netsukekugi, Marugashiranetsukekugi, Satpakugi
Nail Storage Box and Nails	Nail storage box, nails and bolts inside the nail storage box, nail storage container

Wooden Rowboat Construction Tools and Materials (840 items)

Category	Tool Name
Template Board	Dohari type board, Totate type, Nii type, Dragon keel type, Stehen type, Abara type, Sitting type, Other types, Oar type
Ruler	Boat ruler, boat construction ruler stick
Leather Goods and Tools	Leather cutting tools, cowhide, wooden box containing leather cutting tools
Tool bag and nails	Tool bag, copper nails, nails for tin plates
Painting Tools	Spatula, trowel, putty can, adhesive, paint number type, paint stamp type, brush, pen, brush and pen toolbox, oil can, container for painting
Other Materials	Boat building platform, scissors or hoe, long wooden box with seiro function, pin-shaped fittings, tsuka
Boat Materials	Boat hull, stern, totate, knee, boat footrest, clutch, and other boat components

Shipwright Work Clothes (10 items)

Category	Tool Name
Shipwright's Work Clothes	Jacket, raincoat, work pants, work hat, tabi shoes, gloves, arm covers

River boats and river boat models (49 items)

Category	Tool Name
River Boats	Yakatabune, wooden rowboats
Accessories for River Boats	Fishing rod tips, marukans, boat towing devices, fittings for boat towing devices
River Boat Model	Yakatabune model (large), Yakatabune model (small), ferry boat (horse boat) model, ferry boat (denma boat) model, fishing boat model, gravel boat model, river boat model (in production)
Model of River Boat	Shiki type riverboat model, Tana type riverboat model, hand-rowed boat model type