German Notgeld reference numbers [gelöst]

Having recently checked through my German Notgeld collection of banknotes, I realized that I have about 9 banknotes that I do not have any reference numbers. They are not listed on Colnect, although similar banknotes are there.
If I post photographs of them, is there anyone out there that can help finalise my database. Would it be good to have both sides?

Verweis : "COINMAN1"​Having recently checked through my German Notgeld collection of banknotes, I realized that I have about 9 banknotes that I do not have any reference numbers. They are not listed on Colnect, although similar banknotes are there.
​If I post photographs of them, is there anyone out there that can help finalise my database. Would it be good to have both sides?

​I only have a dozen or so Notgeld items, one has no serial number on it, and I found 2 notes which have identical serial numbers.

I am not talking about the serial numbers, but the actual reference numbers that are recognised by various catalogues.
I still like the idea of the same serial numbers. Are the reverses the same? If not, they will have different reference numbers. If the reverses are the same, then I have never come across the situation before.

Apologies, for the misunderstanding on my part.
Hopefully you'll get an answer, I am not too clued up on Notgeld.
I've posted the reverse of my 2 'same serial number' Notgeld anyway.
Regards

They will have different reference numbers. I will look tomorrow at the Colnect website

Verweis : "ScotsGreyhound"​Apologies, for the misunderstanding on my part.
​Hopefully you'll get an answer, I am not too clued up on Notgeld.
​I've posted the reverse of my 2 'same serial number' Notgeld anyway.
​Regards
​

​https://colnect.com/ro/banknotes/banknote/14421-50_Pfennig-L%C3%BCbbecke-Germania_notgelduri
https://colnect.com/ro/banknotes/banknote/14422-1_Mark-L%C3%BCbbecke-Germania_notgelduri

Verweis : "allexis"​

Verweis : "ScotsGreyhound"​Apologies, for the misunderstanding on my part.
​​Hopefully you'll get an answer, I am not too clued up on Notgeld.
​​I've posted the reverse of my 2 'same serial number' Notgeld anyway.
​​Regards
​​

​​https://colnect.com/ro/banknotes/banknote/14421-50_Pfennig-L%C3%BCbbecke-Germania_notgelduri
​https://colnect.com/ro/banknotes/banknote/14422-1_Mark-L%C3%BCbbecke-Germania_notgelduri

​Nice one. Thanks

Nice notes. I do not have any from there.

These three banknotes arrived yesterday, with the same serial number, but obviously, different reference numbers.