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$25 box.
LMC copper 582
1982 zinc 9
1982 copper 51
1959 7
1960 10
2009 5
Canadian Copper 8 lowest 1947, 1966
Canadian Steel 2
Wheat 9
1 Bermuda pig penny
.2672

$25 box.
LMC copper 636
1982 zinc 7
1982 copper 59
1959 9
1960 6
2009 10
Canadian Copper 4
Canadian Steel 1
Canadian Zinc 1
Wheat 9
.2892

$25 box.
LMC copper 573
1982 zinc 4
1982 copper 51
1959 4
1960 3
2009 5
Canadian Copper 6
Canadian Steel 4
Canadian Zinc 0
Wheat 10
Some kind of Guatamala centiva.
.2592

Hey Everything:

It is staggering that of 181 pennies from 1982 that only 20 were zinc. So almost 90% are copper. I thought that perhaps 60-65% is more likely the long-term number that most people come up with. Just curious about your methodology. Are you weighing these on a scale and figuring that those which are 3.0-3.1 grams are copper (vs. 2.5-2.6 grams are zinc)? Or are you doing something else?

$25 box.
LMC copper 641
1982 zinc 10
1982 copper 55
1959 6
1960 4
2009 8
Canadian Copper 4 lowest 1933!
Canadian Steel 1
Wheat 12 lowest 1916, 1919S
.2888

Yeah, they all get separated out into their own pile and I weight them with a scale after the whole box sort is done. I keep all these sorts in a notebook. Here are some more examples. (1982 Z/C) 9/63, 17/71, 14/67, 11/70, 16/52, 13/63, 14/68, 11/72, 12/65, 13/47, 9/50, 9/51, 11/61, 9/59, 9/50, 9/56, 16/62, 11/56, 17/73, 6/61, 6/65, 10/52, 15/64, 11/61, 11/52, 10/57, 9/74, 19/48, 11/56, 10/79, 9/64, 5/81, 8/53, 7/54, 9/51, 7/59.

They made the transition pretty late in the year, end of October it sounds like.
https://www.ngccoin.com/news/article/646/

It is staggering that of 181 pennies from 1982 that only 20 were zinc. So almost 90% are copper. I thought that perhaps 60-65% is more likely the long-term number that most people come up with. Just curious about your methodology. Are you weighing these on a scale and figuring that those which are 3.0-3.1 grams are copper (vs. 2.5-2.6 grams are zinc)? Or are you doing something else?[/quote]

$25 box. Going through some boxes, this one from June 2017.
LMC copper 704
1982 zinc 12
1982 copper 47
1959 7
1960 5
2009 5
Canadian Copper 1
Canadian Steel 1
Canadian Zinc 1
Wheat 9
.31

Everything: The only thing I can think of is that they likely didn't introduce the '82 zincs into your area til very late in the year. Amazing.

$25 box (received in 2014- gone through just now):

Pre '82 coppers 300
'82 coppers 26
'82 zincs 17
Canada 5
Wheaties 6 (none before 1940)
COPPER PERCENT 13.28%

No foreign or unusual items

$25 box, fresh bank box.
LMC copper 623
1982 zinc 9
1982 copper 55
1959 4
1960 6
2009 10
Canadian Copper 1
Canadian Steel 1
Wheat 12
1 2 cent Euro.
.2804

Nov 15,2017 thru Feb 23, 2018 pocket chg plus search give a take a cent.
Big take total 15 cents.
Arizona was good for Sun and lack of rain this year but Cents not so good.
Able to buy 90% at spot but slow to be available.

$12 in penny rolls recd. on 10/28/14 and finally gone through just now...

Pre 1982's 131 (not including wheats or 1982 coppers)
Wheats 7
1982 coppers 9
TOTAL 147 (12.25%) (OUCH!)

NOTE: No Canadian or foreign coins this time.

This was the lowest percentage I've ever gotten. Usually I'm in the 16-17% range.

$25 box, fresh bank box. Some excitement, a penny previously sorted by me came back, the mark is my secret (for now), nor is it a physical alteration to the coin itself.
LMC copper 642
1982 zinc 10
1982 copper 71
1959 7
1960 2
2009 6
Canadian Copper 7
Canadian Steel 0
Wheat 5

.2936