Attempted some Extremely thick and old Sharpie removal on this glossy type 1 of Eddie yost, And a few others I got from a collection.
Big success, took about 98% of it off. And the remaining 2% I believe only remains because the sharpie literally faded into the photo over the decades. Likely was written on around the time sharpies were invented.
I Used a black Expo marker and microfiber cloth.
Went over the writing with the expo marker let it sit for about 30 second then wiped it off. Repeated that for each photo. Probably took 10 minutes or so per, as it was extremely thick sharpie. I expect if it is more modern sharpie/less ink used this would work 100%.
