Film Backs.
eBay
2pcs Camera Strap Adapter Metal Buckle Connecting Lugs Accessories for Hasselblad 500C 500cm 501cm 503cx 503cw Camera Photograph
Aliexpress UK
Complete with dark slide. Fully working unit. All fittings work as they should. Electronic – n/a. Optical – n/a.
eBay
2pcs Camera Strap Adapter Metal Buckle Connecting Lugs Accessories for Hasselblad X2D X2D2 500C 500cm 501cm 503cx 503cw 903 SWC
Aliexpress UK
Set of 3 Hasselblad 12-ON" 6x6 120 Film Back for V System cameras, in good used condition with the signs of use you'd expect from camera equipment this age. One has matching insert, the other two don't but in over 20 years of shooting 'mismatched' backs I've never noticed a difference or had any issues. All in full working order, but like all old camera gear I'd probably recommend a replacement of the light seals for peace of mind - easy job and will cost you £20 for the bits. See pics for condition.
eBay
2pcs Camera Strap Adapter Metal Buckle Connecting Lugs Accessories for Hasselblad 500C 500cm 501cm 503cx 503cw X2D X2DII Camera
Aliexpress UK
Hasselblad A24 Film Back 6x6 for use with 220 film. Hasselblad A24 Film Back 6x6 to be use with 220mm film roll for 24 exposures. Film back with insert, take up spool, dark slide. Matching shell and insert numbers.
eBay
2pcs Camera Strap Adapter Metal Buckle Connecting Lugs Accessories for Hasselblad 500C 500cm 501cm 503cx 503cw X2D 100C Camera
Aliexpress UK
Hasselblad A12 Film Back 6x6. Film back with insert, take up spool, dark slide. Matching shell and insert numbers. Part no.: 30074. In perfect working order.
eBay
Hasselblad Camera Back Bracket A12 A16 A24 Dark Slide Holder Magazine Film Back 500cm 501/503 CXW
Aliexpress UK
Hasselblad A12 Film Back 6x6 (black). Film back with insert, take up spool, dark slide. Matching shell and insert numbers. Light seals just replaced. Part no.: 30147. In perfect working order.
eBay
Instant Back Instax Square Film Back For Hasselblad 500 Camera
Aliexpress UK
Very good condition. Made In Sweden.
eBay
WP Dark Slide Holder for Hasselblad A12 A24 A16 Roll Film Magazine A12 Back 500cm 501 503 Tools high quality camera accessories
Aliexpress UK
Hasselblad A12 Film Back 6x6. Film back with insert, take up spool, dark slide. Matching shell and insert numbers. Light seals just replaced. Part no.: 30074. Fully tested and in perfect working order.
eBay
SmallRig Universal Shoulder Pad with 15mm Dual Rod Clamp, w Shoulder/Back Pad for Reduced Strain for Sony for DSLR Camera -5153
Aliexpress UK