Hallo, A question about stamping the back of black & white prints, with all the care that we can take with "archive" quality of b/w prints does the inks that are used with standard "office" type stamp pads have an effect on prints? I wonder if any of the fine-art printers have any thoughts on this? I am printing on Ilford fibre based warmtone papers, trying to adhere to archive qualities (just for something to aim for) rather than for commercial needs., wanting to stamp my details on the back of prints but not if this will ruin any longevity of prints or just ruin them anyway. Thoughts? Cheers in advance, simo.