1887 Indian Cent, Proof-Like Ms, But With A Problem!

Doesn't look like a proof, but the minor proof coins of 1887-1889 were carelessly made, many were struck only once, so it could be. The signature square rims are missing, and mirror fields are not obvious in the picture with the angled lighting, so at best this could be catagorized as a business strike PL or made from ex-proof dies (notice the die crack from the "U" in united through to the digits of the date?)

UPDATE: I purchased a small bottle of Verdi-Care from Badthad and treated the verdigris areas on the obverse rim. I only applied the product to the rime areas where the verdigris was visible. Most of the green residue did come off and I don't see any negative effects.

Here are some before and after shots. I may try one more application to see if the last traces of green can be removed. I think I will need really fine-pointed tool to massage those deep crevices between the denticles. Based on this experience I would recommend this product; thank you Thad!

Pre-treatment shots:










And, after treatment (including gentle massage with wooden toothpick):

This is a 1907 business strike I used to own that had an obverse with normal luster but a blazingly reflective reverse-