This is so rare it is unique.
eBay
IRIN Accordion Strap Adjustable 16-120 Bass Accordion Shoulder Strap Soft Velvet Shoulder Strap Keyboard Instrument Accessories
Aliexpress UK
CARRY CASE DOES NOT CLIP CLOSE. AGED CONDITION. If you live in or near Louth, Lincolnshire then you can collect rather than wait!
eBay
Adjustable Accordion Straps Black For PU Leather Shoulder Straps Harness 80-96-120 Bass Accordion Shoulder Straps
Aliexpress UK
IT PLAYS WELL AND IS IN GOOD TUNE.
eBay
IRIN 1 Pair Accordion Strap Nylon Gold Velvet Fabric Adjustable Universal 16-120 Bass Accordion Strap Keyboard Music Accessories
Aliexpress UK
I ended up getting a session player in for £300 who did it in one take!
eBay
Accordion Shoulder Strap 96-120 Bass Universal Adjustable Shoulder Strap Wider and Thicker Velour Accordion Accessories Parts
Aliexpress UK
a beautifully crafted by hand accordion from 1930s in tortoise shell/ mother of pearl bacolite, fully working , original leather straps , all studs present and working as are keys etc . only fault is shown on picture 3, but to my knowledge has no effect on the instrument. a real survivor for someone who appreciates or plays . will need a clean and tune I imagine, also contact me regarding postage abroad to sort out prices etc , I've guesstimated on the listing. thanks 👍 oh after I've posted initially someone noticed that one possibly two keys are collapsed, meaning they don't bounce back up after being pressed, these can be fixed , hence the lower offer price
eBay
IRIN 16-120 Bass Accordion Strap Adjustable Professional Universal Double Shoulder Straps Nylon Portable Accordion Accessoires
Aliexpress UK
The Accordion PARROT 120 Basses is a piano accordion with a unique twist - 120 bass keys, perfect for creating powerful melodies. This sleek black accordion from Parrot comes with a case for easy storage and transport. With 41 treble keys and the signature Parrot brand, this instrument is ideal for musicians looking to add a touch of novelty and flair to their performances.
eBay
HK · LADE AH-130 Red Accordion 41 Key 120 Bass 13Keyboard Voice Professional Bayan Accordion for Performance Keyboard Instrument
Aliexpress UK
eBay
HK-LADE 16-120 Bass Accordion Strap Adjustable Professional Universal Double Shoulder Straps Leather Accordion Accessoires
Aliexpress UK
Settimio Soprani piano accordion. Settimio Soprani is a highly regarded Accordian made in Italy. This piece has been used to entertain folk on the Isle of Wifht so it has some age related wear. Certainly works but as I was able to make some noise. Comes with the original case, but no key. I'm not an expert in these items so really just happy to move it on, reasonable offers considered. It's heavy though but comes with the original straps. See pictures for the details
eBay