Anyone know anything about this bass?

[Stempelloos]

Höfner H72/20-B Bridge

A Höfner bridge might fit.

Other options, depending on the string width.

https://reverb.com/en-nl/item/85410...-steel-bass-tune-o-matic-bridge-and-tailpiece

Combo Bridge Tailpiece for 4 String Bass Guitar 87.2x20MM String Space 15MM Bass Parts Chrome - AliExpress

4 Strings Bass Guitar Bridge | Bass Bridge Tailpiece | Guitar Parts Accessories - 4 - Aliexpress

4 String Electric Bass Guitar Tune O Matic Bridge and Tailpiece | eBay

https://www.ebay.com/itm/402626613339

 

[Stempelloos]

https://www.amazon.com/Stainless-Adjustable-Roller-Electric-Guitar-Replacement/dp/B0B6VLF72C?th=1

Gretsch SUS Ebony Space Control Adjustable Guitar Bridge 006-0889-000 | eBay

https://www.allparts.com/products/gb-0514-space-control-bridge-for-gretsch

These are adjustable in width.

 

[seadragon]

Could just be a Franken-bass, there’s one on Reverb right now, Teisco body with scroll hs neck. I’ve seen several Teiscos with those dual thumb rests.