help understanding a tsuba and Hozon paper, translation help please

[Mark]

Grey and i picked up a tsuba.  We are having trouble understanding the inscription. 

 

We see 

left --- Masa Toshi Saku Kore   so we think Masatoshi made this but i guess maybe it could be read differently like Sho???

 

right side -- we are lost, maybe   O (Nori Toku),   Aki ,  Hiro,   Tsune  ????   probably completely wrong

 

Also we note the Hozon paper uses a different kanji for Toshi, so we are not sure if the paper uses an abbreviated form of the kanji on the tsuba or maybe the NBTHK knows who this is and the maker used this other kanji as well ??

 

any help appreciated, thanks  Mark and Grey

[Bugyotsuji]

This tsuba was made for 明弘, Akihiro(?) the guy on the right. 

[Yumso]

応明弘需 正寿作之

 

応明弘需 -> 明弘(Akihiro probably) requested this tsuba

正寿作之 -> 正寿 made this tsuba

 

I think this is Owaza Masatoshi(小沢正寿)'s work. His way of writting 寿 is like that.
https://www.e-sword....tantou/2310-3035.htm
https://www.Japanese-sword-katana.jp/未分類/1610-6001.htm