Couldn't fill my pen from the last bit, as it doesn't reach to the collar of the pen. So it mostly sucks up air. Transferred the last bit to a long skinny tube. Works well!
It's a FPR Indus and you guessed the nib correctly! Might as well name the other pen to the right: Kuretake No. 13 brush pen (takes a platinum 800A converter and fountain pen ink but has an actual brush instead of a nib).
Hooray, thanks for the riddle :) I just happen to know the nib because I am looking for a flex replacement nib for my TWSBI Eco and stumbled more than a few times over FPR but they won't fit without some modifications to the feed. At least I found a retailer.
For the pen to the right I would never have guessed that as the brand is new to me. Thought about a Sailor, japanese and all, but there also were subtle differences (thinner black plate above the clip, two gold righs on the body). Will look that up, thanks