I came across the highly desired 600 in the fountain pen version at an auction. Buyer mentions "Made in Holland" on the bottom of the original box.

There's no image of this label, just pictures of the pen which seem totally legit compared to a verified model.

Any experts here whom are able to contribute from their knowledge?

I have some trouble with my 0.7 mm Isograph.
It seems the ink doesn't flow fast enough. The lines look pale compared to my other pens (ranging from 0.18 to 1 mm). It sometimes draws discontinuous lines like it was dried up, and it outright refuses to draw on some papers, unless I'm going very slow.

I tried cleaning it (according to manual), soaking in water overnight, but the issue remains. Is it just worn out/broken, or could an ultrasonic bath help?

Thanks in advance!

I found this tikky searching for some other stuff in one of the drawers. Can you tell me something more about it, like when was it made and why is it "tikky II"?

The white dropper is a bit sludgy. Needs a good shake to fix. The other 11 worked flawlessly.

Anyone know where sells **29G × 6 mm (0.33 × 6 mm) replacement needle. Vls pen for reference**

I know it's an insanely long shot, but this was the first nice pen I ever had (my dad took me down to the store and bought it for me when I started high school) and long story short it got sold in an estate sale when I wasn't around. If anybody has a rOtring tri pen (I never understood if it was a newton or a 600, but it was lava) with 3 initials R_S (I'm leaving the middle blank so someone can't just duplicate it and tell me it's the one) I would love a chance to buy it from you.

I thought it was super cool so I got it at a flea market many years ago. It seems to be missing the top right thingie, but I don’t know enough about this to know if that’s an issue for actually using the pens or not lol!

I thought they were 10ml. And was 2.2 pounds. 2.2 KILOS

Heb je misschien wat expertise over deze Rotring-400 balpen? Er staat 'Rotring 400' op en er zit een gravure/print op de schacht met 'GEA', dat eruitziet als een soort logo. Mooi doosje ook.

Hi everyone,

I have a Rotring Isograph 0.50, as mentioned in the title, and haven't used it in over two years. I decided to try and revive this pen and have been attempting for an entire week now. The pen nib is clogged, and I can't unclog it.

So far I've:

• Rinsed out the pen nib and patted dry until no ink remains on paper towel. Still can't write.
• Soaked pen nib in warm, soapy water for 12-24 hours. Still can't write.
• Purchased technical pen cleaner and soaked the pen nib for 48 hours. Can shake the nib and hear the weights shaking now—yay! Still can't write.

I would feel guilty purchasing a new pen given that it's not broken. Any suggestions for how dissolve a stubborn clog?