Does anyone know this Namiki Butterfly pen?

[bluebirdy2]

This pen seems to be considered as a very rare Namiki Yukari pen.

 

But there is no information about why this is rare, and how much it was when still in the market.

 

Does anyone know about this pen?

 

 

[mke]

"NAMIKI: YUKARI ROYALE BUTTERFLY MAKI-E FOUNTAIN PEN
Sold for US$ 5,625 (JPY 639,606) inc. premium"

 

https://www.bonhams.com/auctions/21816/lot/1196/

 

from 1999 apparently

[bluebirdy2]

Thank you mke, but I have seen that auction result.

 

I am trying to find more concrete information about this pen, and its original retail price.

[mke]

@bluebirdy2

Ask Pilot.

[bluebirdy2]

Okay I will send them an email.

 

But if anyone knows any information please share me ^^