What is a Verbeterde Singer? (Improved Singer / Verbesserte Singer sewing machine)

Tip/hint: Subtitles English available (turn on/off with CC-icon)
Once a while you see them pop up in western Europe: a ‘Verbeterde Singer’.
Or perhaps a ‘Verbesserte Singer’.
Are these machines real Singer sewing machines? It looks like a Singer 12.
But what is it?
In this video I’ll give you all the info I was able to dig up about the Verbeterde Singer.
All information was verified and only published after fact checking.
Did I miss something or did you spot something wrong? Please let me know in the comments below.
Used film clip: ‘Hoogstraat’ by A. von Barsy (1929). Used with permission of the Rotterdam City Archive (Stadsarchief Rotterdam).
All old photographs are -as far as I know- copyright free (public domain).
Timestamps:
00:00 Intro/ start
00:33 Sold since at least 1876
01:30 This happened in 1902 in Rotterdam
02:59 It is just a scam...
03:18 Fraud!
Used Music:
Dreams Become Real van Kevin MacLeod is gelicentieerd onder een Creative Commons Attribution 4.0-licentie. creativecommons.org/licenses/...
Bron: incompetech.com/music/royalty-...
Artiest: incompetech.com/
Gear:
Camera: Sony PDW680 broadcast camcorder & Sony FS7 with DZOFilm lenses
Light: SmallRig RC-120b (and another small softbox)
Voice-over recorder: Tascam DR60D-MII
Software: Final Cut Pro x
Note: English is not my native language. My sincere apologies for any mispronunciations!

[@clementihammock7572]

✌oh yeah!

[@user-zx9cf6xb4q]

Nice dig!

[@erikneek]

Thank you very much. Glad you like the video.

[@andreashaberkost9702]

👍 sehr informativ und hilfreich👍👍👍

[@erikneek]

Vielen dank Andreas!

[@janroosendaal1314]

Alweer een zeer fraaie en informatieve video Erik 👌
Ga zo door 💪👏

[@erikneek]

Grote dank Jan. Jij hebt mijn enthousiasme aangewakkerd dus ergens ben je misschien mede-schuldig aan mijn video’s 😉 lol!

[@michaelbean739]

Hey Eric. You could advertise it as a Stinger.

[@erikneek]

Lol. I could do that but I just sold it as a Verbeterde Singer (Singer 12 copy)

[@edwardmellitz4302]

first thing where do get the needle

[@erikneek]

First thing would be the question: needles for a verbeterde singer or needles for a singer 12?
Answer to the first question: honestly I have no idea what needles would fit a verbeterde singer

[@AdeBELCIER]

On ebay , singer 12k subitute . new. On TREADLE LADY

[@lindavee]

I have a "Verbeterde Singer/ Naumann that takes 12x1 needles.

[@AdeBELCIER]

@@lindavee DB X1

[@lindavee]

@@AdeBELCIER Mine does not take these ones, as the upper part of the shaft is a bit thicker than the original 12x1. I've got 2 Singer 12/New Family that indeed take DB x1.