1948 Canada 50 Cents-Grade & Authenticity Ck

I think the black stuff may be from a felt tipped pen. Most of it has been rubbed off, but some remains.
Try acetone.

VG-10. Use coinsandcanada.com for coin values. Very low mintage date and therefore valuable. Use acetone to clean off the gunk and that should increase the value and resaleabillity.

Hi,




It always amazes me how my small USB camera can drill down to provide such great detail at higher magnifications such as this eye region: all for an investment of about $ 30 or so.

Incidentally, I initially used a porcupine quill together with a cotton swab saturated with a 100% pure acetone product called ONYX Professional in a first attempt to loosen the black grunge.

I then followed it up with a soaking solution of liquid hand detergent & water.

Even though the preceding couple of procedures should have adequately addressed both the polar and non-polar chemical components of this annoying residue, apparently this black junk had already bonded chemically to the patina/surface in some areas where the black residue remained as a lighter shade compared to the original darker color.

Finally, I understand that a porcupine quill falls into the same class as a rose's thorn insofar as not being able to scratch the surface. The scratches seen here under higher magnification must have already been present before my cleaning procedures described above began.

This acetone product is not supposed to leave any residue.

I think it could still squeak out the lower end of a F-12 grade; opposing or agreeing opinions are welcomed on the grade obtained after cleaning.

fyi

mdpmedia

hi would anyone know if a mild solution of baking soda
helps cleaning coins or should it not be used at all
thanks

thanks again p/c


I would love reversing as much damage
as possible
merry christmas