Bitcoin Forum

I've been collecting "physical" crypto coins for as long as I can remember, but recently I've became curious in knowing which "physical" crypto coin is the smallest ever made (especially one related to Bitcoin). I'm talking about coins which you can use as a cold storage wallet like a Casascius, Lealana, 1HODLCLUB, Denarium, or Satori. Not those which are only souvenirs (no ability to load BTC on them). To my knowledge, there's one called the "Delos/Veritas" Bitcoin which is a slightly bigger than a US dime. But maybe there's something smaller than that? I'd love to see a "physical" Bitcoin that's the size of a US dime (very small). That would make it the coolest crypto collectible in the world.

Any suggestions? ???

Hi Abiky - All I can think of are these...

https://bitcointalk.org/index.php?topic=5416538.0

The diy bitcoin penny is the smallest one I have on hand, is that smaller than the new lealana coins?

I'm pretty sure my most recent release is the world's smallest loadable physical bitcoin at 19.8mm diameter.

But I'm willing and open to being proven wrong.  :)

Has anyone made a list of smallest/largest, etc physical cryptos? ???

Smallest physical bitcoin coin: Lealana 1/10oz silver
Smallest physical bitcoin token: MyBitcoinMint 1g gold

Largest physical bitcoin: BitcoinPenny Manhole cover
Largest physical bitcoin coin: NastyFans 10oz
Largest physical bitcoin token: ??

Any other categories?

It looks like the new Lealana silver coins are the smallest "physical" Bitcoins in existence. I've bought one a couple of days ago, so I should be able to see its actual size once I receive it. Still, it would be cool to have something smaller than that. Perhaps, someone will make a "physical Bitcoin" the size of a US dime? The only downside to having a diminutive-sized coin is that you can easily lose it. But if you keep it in an ICG, ANACS, or PCGS slab, that shouldn't be a problem. :)



A thread where we can read about the smallest/largest physical crypto coins would be an excellent idea. Thanks for the info, by the way. It never came through my mind the NastyFans 10oz silver coins. I've completely forgot about them. Lol. Just need to accumulate more BTC to add it up to my collection. I have over 120+ graded and non-graded physical crypto coins already.  ;D

I think I am up to around 200 different coins/chips/slabs - some graded, most not. some are more like tokens in the sense they are not wallets.

A book..
Like the "Guinness Book of World Records"....  we could have the "Satoshi Book of Crypto Records"  :P

Don't know if either of these count (edit) as physical tokens, but they're both a little smaller than a .10 USD...

https://i.ibb.co/rF0qG5q/IMG-7644.jpg (https://ibb.co/rF0qG5q) https://i.ibb.co/yyMFFpp/IMG-7645.jpg (https://ibb.co/yyMFFpp)

Nobody mentioned the 1 gram rounds yet or are we not counting those?

I have those, but unfortunately, they're not coins that you can load them with BTC. It would be great to have a "cold storage coin" that would be as small as the coins pictured. I think it's possible given the fact that QR codes can be printed on any size (if I'm correct). The real problem would be getting a tamper-evident hologram/sticker that would be so small to fit on the back of the coin. I haven't seen holos the size of a US dime, so I guess we're out of luck. :(



Thanks for your suggestion. But I'm looking more into physical crypto coins that can be loaded with crypto (in this case, Bitcoin). These 1 gram rounds only count as bullion, instead of a "cold storage wallet". That said, it seems that the 2022 Lealana Silver coin is the smallest loadable Bitcoin so far.

2015 1/10 oz 999 silver
Mintage of 3.

 This is back whenn I ran a small mint out of my garage. I used clay models and a reduction machine to make dies. I would swing a 20 ton screw press to make my own custom physical crypto wallet pieces and wake the neighbors.  ;D

Funded with .1 to match the weight.
I have a few 1/4 oz silver pieces, 10 1/10 oz gold and a few gold/silver bars too. Real 999, not that fake plated stuff. I believe I made a 1 of 1 in bismuth. The gold 1/10 oz is probably the smallest. it was 15-17 mm I dont remember. The design was horrible...as I was learning how to engrave in metal. I would destroy the dies after several strikes because I never hardened them. It was all trial and error. I like them rough looking and treasure like. All made in the 2014-2016 time frame. Bitcoin was cheap at the time so I didn't care. The silver 1/10 oz were around $25 each. It was more about promotion of physical silver crypto wallets and exploring outdoors.

I hid various rare silver bars and wallets around the world when I would go on vacation. Arkansas diamond mines, Blue springs Missouri, Cabo San Lucus Mexico mountains, El Yunque Puerto Rico. ect. in hopes people would find them in a 1000 years and be like WTF.  ;D Like a hidden pirate treasure.

I didn't know anything about holograms at the time, so I just ordered some generic ones on ebay that would fit my blank planchets.
I'll see if I can find pics of the press. It was badass. It literally had huge balls. Ball wieghts the size of basketballs you had to swing around to make the strike. Good times.

Not for sale.

https://i.imgur.com/BwYo26S.jpg
https://i.imgur.com/YfwYaT5.jpg
https://i.imgur.com/RCoKphe.jpg

It still makes me smile.  ;D Pic was from when I first got it (2013). It wasn't in the best of shape.

https://i.imgur.com/YPz8kYZ.jpg

I engraved some tiny metal discs with private keys that were going to go inside carved wooden round “coins” in a cooperative project with WoodCollector several years ago. WoodCollector ended up stealing the prototype and disappearing, but it was a pretty sweet attempt at something new and the engraved metal discs were damn small. No idea what ended up happening to them. Most likely they will remain a myth.

Nice, I bet some wooden nickel collector has it by now and has no idea what the thing is.  ;D

That's pretty awesome. I like the fact that you've made a pure silver loadable physical Bitcoin at such a diminutive size. With only a mintage of 3 units, I can imagine these selling for a very high premium (if you decide to sell them someday). If I had one, I'd treasure it forever. :)

By the way, I'm curious to know more about the "Bismuth coin". Do you have any pictures of it? ???

I had a lot of fun making rounds and learning. I actually made over 100 of the Iowa Spark 1/10 oz rounds for resale, but I only made 3 that were for holding crypto keys. They were for personal use. I was mostly just selling silver rounds during coin shows. I focused on fractionals.
https://i.imgur.com/nNtaAZI.jpg

Here is a picture of the smallest piece I made for personal use. Its a 1/10 oz gold 16.33mm Iowa Gold Spark. I think only 8 were minted in 2014.
https://i.imgur.com/8jCAfDo.jpg

I used bismuth as an easy way to test dies. The metal is easily re-melted after you strike it and can be examined, re-melted and struck again fairly quickly. Its melting point is low and similar to lead. I didn't have to spend a lot of extra money on gas/mapp, I could use a candle to melt small amounts of bismuth. The 1/1 crypto piece was made using the liberty image die and the back was a blank die. The edges were rough and split open. You could see bismuth crystals on the edge. It was different for sure. I don't know where it is right now, but most likely packed away in a box full of dies as I don't think It was ever funded.