【Rare】Maxon/Greco Violin Bass Pickup Set - As-Is Condition

Sound output confirmed from all pole pieces.
*One pickup is normal, but the other has unstable resistance and noise, so it is being sold as junk.
This is a Maxon pickup for violin basses, found in Greco VB series and other models from the 1970s.
Based on the stamp 23109 on the back, it is presumed to have been manufactured on March 10, 1972.
This is a Japan Vintage part, perfect for restoring Japanese-made violin basses or customizing bizarre guitars.

The seller has not used it themselves, so the frequency of use is unknown. Please consider this item understanding that it is a vintage product.

#Greco #グレコ #Maxon #マクソン #ViolinBass #JapanVintage #ElectricBass #Pickup #VB450 #VB360 #Beatles #ビートルズ

Appraisal/Detail Points (AI Research)
Manufacturing Year and Manufacturer
The 5-digit stamp 23109 on the back is a date stamp from **Nisshin Onpa Seisakusho (Maxon)**, which supplied electronic components for Fuji Gen Gakki (Greco) products at the time.
2: 1972 (or 1982, but this shape is mainly from the 70s)
3: March
10: 10th day
9: Manufacturing line number for that day, etc.
From this reading, it is highly likely to have been manufactured on March 10, 1972.
Features of Violin Bass Pickups
Four pole pieces: Indicates it is for bass.
Size: The width is approximately 70mm and the length is just under 30mm, as shown in the photo with the ruler. These are the dimensions of a narrow-sized humbucker (a copy of the so-called staple pickup) that fits Hofner-type (violin basses).
Mounting Tabs: The shape of the tabs protruding on both sides is a typical form for suspending the pickup with springs in the escutcheon of a violin bass.