Tuesday, January 20, 2009

Lightweight Alternative

Do you have a world coin and want to know its value? Leave a comment/question and I will do my best to find out the price and history for you.

When the economy gets tough the coins get lighter. Sure you can do the old standard of making the coins smaller but that is a temporary solution at best. Nope you must do something drastic like change the metal composition or in some extremes abandon metal all together. Not having any legal plastic money from any country in my collection I have the second lightest thing.

Aluminum: Some nice and nerdy facts...
  • Aluminum is the most abundant metal on Earth
  • Aluminum is the 3rd most abundant element on Earth
  • Aluminum is commonly found in mixtures and must be always be refined
  • It is non-toxic
  • Once in metal form it is easily recycled
Here is a nice one from Indonesia slightly larger than a standard U.S. quarter but less than half the weight.

This was back in 1955 when we were using silver the U.S. 25 cents weighing 6.25 grams each while this 25 Sen weighs 2.22 grams. Almost one third the weight on a coin slightly bigger. Currently Aluminum is about $0.65 per lb while the only other cheaper coin metal is Zinc at about $0.55 per lb. (Sorry for mixing English and S.I. units).

Why not everyone switch to Zinc? Well it is highly reactive and can be unhealthy.
So then why not Aluminum for all? Again it is highly reactive and bends easily.

By highly reactive I mean it will oxidize and bond with any other element very easily. Finding a WWII aluminum franc is easy but in perfect shape it's rare. Time is not good on most of these coins.

Here's the stats...
Type/Country: 25 Sen / Indonesia
Year: 1955
Mintage: 25,767,000
Metal: Aluminum
Value: $0.35 in Unc

Air tight containers are best for storing these coins, they tend to haze over when exposed to air for any length of time.

Do you have a world coin and want to know its value? Leave a comment/question and I will do my best to find out the price and history for you.

11 dollars worth, for Comments/Questions click here.:

James UK said...

Just reading that bit about exposure to air, how do you feel about coin "slabbing"? Do you agree with it, or frown upon it?

Man said...

Slabbing is great and while it should be air tight most slab coins are not air tight and it is just a grading service.

Nothing is worse than paying $40 for grading putting the coin away and coming back in a year to notice a haze or growing tone on a once perfect coin.

I owned 6 slabbed coins and one developed a brown ring the rest are fine.

Hal said...

First of all, I love your blog, thanks!

I found this dime in my change today, and I noticed that the obverse slopes down slightly, towards a double ridge towards the front of Roosevelt.

It's a bit hard to see, but I uploaded a scan here: http://flickr.com/photos/33440806@N08/3213927961/

Any idea what caused this, and if it's worth anything?

Thank you!

Man said...

I found this dime in my change today, and I noticed that the obverse slopes down slightly, towards a double ridge towards the front of Roosevelt.

Great picture.

These are known as Partial Collar error it's common on dimes. It's about $5.00.

James UK said...

Thanks Man. Interesting to hear that coins can still suffer "ageing", even after they've been slabbed.

Anonymous said...

i have a roll of 1961 pennies still in bank roll,price guide on best coin has 3 different 1961 coins. for example desig rd , ca , dc ? How can i tell how much my pennies are worth?

Man said...

price guide on best coin has 3 different 1961 coins. for example desig rd , ca , dc ?
I'm not sure what you mean by this.

1961 pennies still in bank roll
Assuming U.S. coins and mint-state 65 the roll is about $15.00.

Rio N said...

i have a 1788 voc coin from ned. indie(indonesia). above the voc monogram there are 3 stars.

--- and i have a very weird coin! a coin without any text!( diameter approx. 2 cm),it's yellow and it has a big circle motive above four smaller circles the back side shows nothing. please give your e-mail address and i'll send you a pic of the coin.

Man said...

1788 voc coin from ned. indie(indonesia). above the voc monogram there are 3 stars.
--About $1.00 in good


i have a very weird coin! a coin without any text!( diameter approx. 2 cm),it's yellow and it has a big circle motive above four smaller circles the back side shows nothing. please give your e-mail address and i'll send you a pic of the coin.
--Sorry no email to share, why don't you leave your email and I'll copy and delete it.


Rio N said...

hi i've found a 1984 100 Rupiah Indonesian bill. the number is quite good, SFN307555, that's why i'm asking you the value. unfortunately there are some fold marks. thanks.

Man said...

1984 100 Rupiah Indonesian bill. the number is quite good, SFN307555, that's why i'm asking you the value. unfortunately there are some fold marks

About $0.25