69 kennedy half 90%??!!

so i found this kennedy half and i know they are supposed to be 80% silver from that year but it looks slightly different from the other, and with no coin shops any where near by, i took this coin to a jeweler friend of mine who tested it via what ever methods they use and he claims it is 90%.

Could this in any way be true? Dont call me crazy i dont believe it my self i just had to post this and see what others thought. So Please tell me what you think?

 

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You could check by the weight... but for that year it should be 40% silver

 

see that is the problem with the weight some idiot before me drilled a hole through the middle of it but if the weight is a some what big differance maybe i can still tell. what should the weight be? and with it only 40% shouldnt you be able to see a copper ring on the edge? mine has no ring around the edge

 

12.5 grams for 90% and 11.5 grams for 40%

 

It shouldn't show a ring but is kinda grayish color is a regular 40%

 

Read your red book. 1965-1970 "Outer layers of .80 silver and .200 copper bonded to inner core of silver". The whole outer layer is silver so no copper edges on these and they will look about the same as a 64.

 

Easiest way is to melt it. If you get more copper than silver, then you know it's normal. If you get more silver than copper, then you know you melted a very rare error.
Just kidding, but in reality, it's a normal silver clad 40% half.

 

ok so i just weighed it now help me figuer this out it weighs excatly 11.5 grams with a excatly 1/8 inch hole drilled through it. with the hole even if the coin weighed 11.5 from the mint shouldnt the drilling of the hole have taken some weight off of it?

 

I've found several 40%ers that looked like 90%ers.

Do a sound test. Drop a known 90% on a hard surface and then drop your coin, or flip them in the air.....you can hear the difference. Or, you can weigh it. It is highly unlikely that it is 90%...

 

well like vess said red book says 65-70 is 80%. and honestly i am not good at being able to tell the differance between that little of %, (10% sound) and i did weigh it and it is excatly 11.5 grams but has a 1/8 inch hole drilled through it so i would think that should bring down the weight but the hole if it did come from the mint weighing 11.5 did not make even a 1/10 of a gram in weight differance. shouldnt the hole in it take away some weight

 

65 - 70 are 40% silver, NOT 80%. There is an outer layer of 80% silver and 20% copper and an inner layer of approximately the opposite for a total of 40% silver for the coin.

 

still even so if they are supposed to be 40 or 80% dont matter i can not figure out how to tell if this one is 90% the jeweler says its 90% it looks 90% no outter ring sounds 90%, but weighs 11.5, but has a 1/8 inch hole drilled in it witch to me should take some weight off of it. i would think if not a gram at least half a gram. so can any one help figure this out

 

The coins minted were not always exactly 11.5, some were a little over, some a little under. If your coin is seriously 90% silver, I'll post a video of myself eating my hat

 

if i could find out if my coin is 90% i will post a video of me eating a dirty sock.. ha. that is the point i have no way of knowing for sure. other that the jeweler telling me he is sure it is.

although i am 99.99999% sure there is no way it can be if it is i believe even with the hole it in i am a very rich man. and i will share VERY NICELY with any one (if it is infact 90%) who can tell me excatly a full proof way of finding out if it is or not

 

I am surprised that nobody in this thread has asked for pictures yet. So how bout some pictures for the heck of it.

 

ok seems like that would be the smart thing haha.. one second

 

I'm serious, take a 64 and flip it in the air and take a known 40%er and do the same. Very different sound. Then do yours and see which one it sounds like.

 

here are pics on the left is on kennedy from 1972 that is the closest date to the 69 i have

 

so what ya think

 

These things had a weight tolerance of believe it or not .4 grams +/- so it could have weighed as much as 11.9 grams before the hole was drilled. If you can't see the inner core either at the edge or inside that hole then the only way to know for sure is to do a specific gravity test on it.

One problem with it being 90% silver is where would the planchet have come from?