Some coins that I submitted to NGC at the Central States show. They came back, and this video shows me unboxing them.
Is there that much difference between 88% copper 12% zinc and 89% copper 11% zinc? It's just the alloy mix.
mlov43 I really enjoyed the video and congrats on getting back your coins so fast!! I myself have a 19 coin submission to NGC, they received it on 5/2. I'm hoping for straight grades for everything!
No, not much difference (1%). It may also have been the calibration on the XRF analyzer that created that result, or maybe the metallurgy work of the brass sheet metal from which the blanks were punched was not held to high measurement tolerances? It would have been nice to have that (89%/11%) on the tag, as that would have made this 1970 10-Won coin unique. Anyway, the intended metal ratio was 88%/12%.
Well, here is something else, I assume these things round off. What if one coin was 88.49% and 11.51% and the other was 88.51% and 11.49%, then even though they are pretty much the same, one is listed as 88/12 and the other 89/11.
Good luck with that, man. Hey, maybe you can at least share your grading results with us here at CT, if not make an "Unboxing Video?"
@mlov43 Definitely will keep everyone updated on the status of my submission and perhaps even try a video! You have great editing skills!
The XRF analysis is most certainly interesting. Some of my coins are worth researching but shipping will kill it as well as I hate the idea of them going missing. Well done on the 10 won coins! I do like the older 5 yen coins - I don't think I have any of them in UNC condition. I have to check what I have - I'm losing track of what I own...
@gxseries Shipping to NGC was like only 15-20 for the coins I sent and I shipped it with insurance and tracking...no issues there. Just do it!
Their shipping might prove pricey, sure, but it is sent under lock-and-key via Registered Mail. I would reserve this kind of grading only for your most valuable pieces that you think grading would help with resale value either where you live, or in other countries...
I guess the reason why I'm hesitant is because living down under does not make it any easier. Shipping cost is one thing but we sending and receiving coins is another. Australia Post is known to hate mailing coins. Had a couple of times coin shipment got sent back as they were deemed as 'prohibited goods'...
@gxseries well that sucks! Perhaps you can go to a dealer that ships to pcgs or ngc? They may know what to do
Send one or two ounces of coins (or gram equivalent) at a time folded in with several pieces of paper in a regular letter. Yes, there is risk due to lack of insurance or tracking. But if dealing with trusted people, the risk of both actual loss and claimed loss is very minor.
Very nice video. I hope this is not a dumb question, but isnt such a high percentage (over five or ten) of zinc considered brass, not bronze? You put bronze in quotes so maybe youre aware that it's incorrectly cataloged or something. I just sent off a second batch of five coins to pcgs, this time five world coins. I'll maybe do a video or post pics when i get them back in june. i sent off two nazi 10 pfg zinc coins that should be unc, and some other cool coins
88% Copper and 12% Zinc is Brass. It is actually the alloy used in Canada for the 1942 and 1943 nickels and is known as Tombac. With alloys, there is always going to be variation from one area to another in a strip, so a few percent here or there is probably within tolerances.
Then he's wrong. Copper + Zinc + Brass; Copper + Tin = Bronze. In the pricing guides, while both varieties are scarce, the earlier Bronze piece is worth ~3X the later Brass pieces. The two pieces in the video turned out to be Brass.