C0D

I do use Wise, very convenient and fast also to transfer money to Japan.
A suggestion when sending money to Japan, ask for kanji/katakana account name or it can cause problems for transfer.
i leave you my link so you can have a free transfer up to 500€ (and i can get some cashback )
https://wise.com/invite/u/manuelc927

looks like 需應佐々木重輔
which should mean "on request of Sasaki Shigesuke (or Jusuke)"

Seems he liked his swords being custom made
https://jref.com/threads/request-for-help-translating-kanji.251744/
https://www.militaria.co.za/nmb/topic/33601-help-needed-with-mei/

btw here's a beautiful documentary on how kettles are made traditionally (you can also see how complicated is to get a good one that way) 

4 minutes ago, GRC said:

"If soft metal casting of tsuba and other sword fittings goes back 400+ years in Japan, then why wouldn't they also have made cast iron tsuba and fittings?" 

Cast iron has a melting point of 1250+ °C (which was hard to achieve with ancient bellows) while copper have 1085°C and brass 900-950°C (depending on the composition of the alloy), moreover as said previously cast iron needs to be heat treated after pouring to ensure workability and toughness. Charcoal wasn't cheap even in those times, so would have been a double waste, the work of a person to make a tsuba from scratch was probably cheaper.

A little tanto habaki i have since a while

My best wishes to Guido, looking forward to have a beer (or two) with him again

they do look quite new, maybe Meiji or modern

A pretty unique one from Aoijapan https://www.aoijapan.com/wakizashi-mumeiunji/

SOLD

That sword looks like an utsushi of the famous Yamatorige https://markussesko.com/2018/11/29/the-yamatorige-sanchomo-山鳥毛/

Probably someone tried to test cut his sword against the tsuba

That is actually a ken (straight double edged sword) it represents Fudo Myoo 

Still available

You're welcome

should be this:
YOSHIKUNI (吉国), Kanbun (寛文, 1661-1673), Tosa – “Kōzuke no Kami Yoshikuni” (上野守吉国), “Kōzuke no Daijō Yoshikuni” (上野大掾吉国), “Settsu-jū Yoshikuni” (摂津住吉国), real name Morishita Magobei (森下孫兵衛), son of Harima no Kami Yoshinari (播磨守吉成) and older brother of Mutsu no Kami Yoshiyuki (陸奥守吉行), he studied under the 1st gen. Yamato no Kami Yoshimichi (大和守吉道), he lived in Kyōto´s Fushimi-Ryōgae-machi (伏見両替町) and later in Tosa´s Kusaka-mura (日下村), he came originally from Nakamura (中村) in Ōshū province, he worked in the style of his master Yoshimichi, the jigane is an itame mixed with masame, the hamon is a gunome-midare, partially mixed with sudareba, and has a sugu-yakidashi, wazamono, chūjō-saku

A papered example here https://katananokura.jp/SHOP/1810-W03.html#:~:text=摂津住吉国（上野守,として活躍しています。

武州下原住康重 - Bushū Shimohara ju Yasushige

Spring discount, 550€ plus shipping and Paypal

If genuine it should be around late 1600's

河内大掾原国定 Kawachi no Daijo Minamoto Kunisada

on the outside i can read 花文透鐔 Kamon Sukashi tsuba and on top right 無銘 mumei
Inside seems to be 丸形 Maru gata and the rest is quite hard for me, there's another 無銘 mumei and the signature is the one of Kanzan

i'm not an expert of mirrors, but sure they value more than some euro
WIth a quick research i found this sold on catawiki that has exactly same design as yours https://www.catawiki.it/l/19624787-bronze-hand-mirror-signed-fujiwara-masashige-Japan-early-20th-century-meiji-period 

the price looks quite cheap especially considered the lacquered box.
Mirrors from that maker are also exhibited in museums https://www.britishmuseum.org/collection/object/A_1944-0401-2
 

I already did, i just updated the price 

If original it would be Early 20th century, around Meiji Period.
The flat side would be litterally mirror polished, usually those mirrors also have an handle attached, but maybe this one being small didn't need it or got broken?

Another big drop to 650€ plus shipping and Paypal fees

It's a brass/bronze mirror, it is signed 天下一藤原政重 Tenkaichi Fujiwara Masashige