geometric Inkwell

[corrybottles]

Hello. I had a friend pickup this inkwell at an auction. I was wondering what number it is & what it is worth? It has no damage ( Mint Condition) Any help would be helpful. Paid $50 for it. Thanks.

 

[corrybottles]

pic:

 

[corrybottles]

The color is Olive green:

 

[kungfufighter]

Nice ink, it is listed by McKearin as GII-18. Don't have my reference material in front of me but I believe that the plain based examples were made at Keene. At one point in time these inks would bring $175 to $200 but they're flat now ant $125 to $150 would be a good price.