Here is a coin from my first batch. Are the lines scratched into the surface improper/too tough cleaning. I also see 2 bright spots where the patina was went thru. Any recommendations on how to prevent this.
I am re photographing coins I and my helper cleaned last year and a few have these marks. Sad. Lesson learned.
Hi Britannia... I suggest you read this thread here... has a link to a very interesting document on cleaning bronze coins.. I say it is interesting - I am no expert to state that you should follow the processes outlined in the document. My suggestion is that you read all you can and make your own determination. https://www.cointalk.com/threads/best-way-to-clean-bronze-coins-my-opinion.313459/#post-3032555