Please help identify this OMAS EXTRA Desk Set

[Hannericoyd]

I won this Omas Extra Deskset in an auction. Has one fountain pen and one ballpoint pen. I have been able to find a similar desk set with just a single pen holder, but not one with two. I am also unfamiliar with how this fountain pen works. I would greatly appreciate anyone's help in identifying this set and any info about it. Also, how does this fountain pen work? Thank you so much!
https://i.postimg.cc/Fd80zHrg/8-D35-A1-BB-60-B5-45-A2-8213-8-DE9-BD5-CE6-FC-1-201-a.jpg (https://postimg.cc/Fd80zHrg)
https://i.postimg.cc/N951QHcj/A6-FF3600-5784-4-FAD-88-CA-BD028676-B75-A-1-201-a.jpg (https://postimg.cc/N951QHcj)
https://i.postimg.cc/06tYgCh4/AA6-BE45-B-A119-4127-91-C1-110-CDEA86972-1-201-a.jpg (https://postimg.cc/06tYgCh4)https://i.postimg.cc/XrkKLWL4/B3-F4-D65-B-5-BAF-4933-8-CFD-D5-AC29146-A08-1-201-a.jpg (https://postimg.cc/XrkKLWL4)

[christof]

The style of the nib of your OMAS reminds me to the OMAS Studio era, so this might be from the 1970's.

For disassembling these pens, one has to unscrew the section. Then, the piston can be removed and assembled correctly again.

For replacement parts, ask Tom Westerich from www.penboard.de

[nihaj]

I won this Omas Extra Deskset in an auction. Has one fountain pen and one ballpoint pen. I have been able to find a similar desk set with just a single pen holder, but not one with two. I am also unfamiliar with how this fountain pen works. I would greatly appreciate anyone's help in identifying this set and any info about it. Also, how does this fountain pen work? Thank you so much!
https://i.postimg.cc/Fd80zHrg/8-D35-A1-BB-60-B5-45-A2-8213-8-DE9-BD5-CE6-FC-1-201-a.jpg (https://postimg.cc/Fd80zHrg)
https://i.postimg.cc/N951QHcj/A6-FF3600-5784-4-FAD-88-CA-BD028676-B75-A-1-201-a.jpg (https://postimg.cc/N951QHcj)
https://i.postimg.cc/06tYgCh4/AA6-BE45-B-A119-4127-91-C1-110-CDEA86972-1-201-a.jpg (https://postimg.cc/06tYgCh4)https://i.postimg.cc/XrkKLWL4/B3-F4-D65-B-5-BAF-4933-8-CFD-D5-AC29146-A08-1-201-a.jpg (https://postimg.cc/XrkKLWL4)

Thank you! I'm looking for a nice brush for kids to practice writing.
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