伊豆 … [Izu]
鈎先は鋭く少し内向きで，… [ tip is sharp and slightly pointing inwards]
Not sure how to translate this one.
I tried substituting 針 for ばれ, ba re. And the kanji in parenthesis is wrong, I couldn’t find or draw the correct one. It looks the same, but should be in smaller font, like the ones to the right of it. The two are different.
However, it seems to be something about how it is difficult for the fish to get off, and the type of metal it is made from.
Special ・no.7 ・10 pieces
平打ち [beaten flat]
森川釣針 Morikawa Fish hook.
Todoroki-san already did most of the important text on the back side.
But I don’t think he listed this one:
株式会社もりかわ釣針 … Morikawa Co., Ltd. fish hook
Actually the word order is - Ltd. Co. Morikawa Fish Hooks.
Morikawa [Forest River, 森川]. can also be written in other text as : もりかわ or モリカワ.
I found several Morikawa companies, including a Morikawa Coffee Company, Morikawa LEDs, another Morikawa company that makes power equipment, and one that seems to do some kind of environmental work.
I found one Morikawa company that does make fishing gear. But they seem to make deep sea fishing gear. I did not see any hooks on the website. Likely a different company, But who knows - maybe they used to make hooks and no longer do,
モリカワ産業 株式会社… Morikawa Industry Co., Ltd.
（モリカワサンギョウ) … (Morokawa Sangyo)
｜小樽商工会議所会員企 … | Otaru Chamber of Commerce and Industry Members
BIG モリカワ産業 株式会社 … BIG Morikawa Industry Co., Ltd.
However, on Aliexpress, DHgate, and on Edithtao websites, I found Morikawa fish hooks under the Senchuan Fishing Hooks label. The Edithtao web site actually list them as being Japan Origin hooks in the URL name.
Just do an internet search for - Senchuan Fishing Hooks - and you will find many types of them labeled similarly.
Edithtao Japanese Origin Fish Hooks
Aliexpress Senchuan Morikawa Japan hooks
Looks to me like the hooks are made by some unknown Japanese hook making company under contract to Senchuan company in China, and they just slap the Morikawa name one them.
Some, perhaps fictional company called, 株式会社もりかわ釣針 (Morikawa Ltd. Co. Fish Hooks.
Even this search phrase - 株式会社もりかわより釣針 - Fish hooks from Morikawa Ltd. .Co - did not find any Japanese company with that name, nor any tackle shop carrying hooks with that name. [ But, it was kind of a fun research project though]
I don’t ever recall seeing packages of fish hooks listing the hook weight in grams. Weighted hooks, 針重り, though will usually provide the weight in grams, on their website if not on the packaging.
Maybe your best way to find out their weight is find a friend who reloads ammo. They usually have very accurate scales that will measure very low weights. Proper powder weight is pretty important to know to keep a firearm from exploding in your face.