runswithsizzers
Subscriber
Good point.Given that the television aerial and the branches and twigs in the image in post 22 are not affected by the marks, the cause of those marks is not foreign matter on the negatives. The negatives should go back to the processor for an explanation, as the OP won't find the answer here on Photrio.
@DavidClapp can you tell us what we are looking at in post #1 and post #22? Are your photo examples scans of negatives which have been converted to positive? Or are they scans of paper prints?