I have 4 Hasselblad A24 backs that I no longer need. They have not been used for quite sometime. If I remember correctly, 2 are good to use and 2 may/do have spacing issues. Two backs have dark slides and two do not. I made notes and taped to the backs. These notes should show in the pics. If not, contact me with questions. BTW, 120 film works well in A24 backs. $50 for all 4, net to me. Any fees are on you.