Monero Dimes and Quarters

Matching 0.1 XMR dimes and 0.25 XMR quarters in brass and nickel-plated brass, including rainbow nickel and rare Tribal / Front Holo variants.

Historical market snapshot · 2021-01-10

1 BTC = $38,3561 LTC = $171 ≈ 0.00446105 BTC1 XMR = $185 ≈ 0.00482683 BTC

CoinMarketCap daily snapshot; approximate and not an appraisal. Rate source

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Coin and set specification

Denomination or variant	Metal / format	Maximum mintage
0.1 XMR	Brass	2,000
0.1 XMR	Nickel-plated brass	2,000 total; 300 rainbow
0.1 XMR Tribal / Front Holo	Rainbow nickel-plated brass; Easter-egg subtype	15 reported; included above
0.25 XMR	Brass	2,000
0.25 XMR	Nickel-plated brass	2,000 total; 300 rainbow
0.25 XMR Tribal / Front Holo	Rainbow nickel-plated brass; Easter-egg subtype	15 reported; included above

Set composition

Four matching serial-number coins, comprising brass and nickel versions of both denominations, sold through coordinated rolls. A rainbow set substituted rainbow nickel pieces. Later collector records describe one unadvertised Tribal / Front Holo coin inserted into each full rainbow roll.

Original offer prices

Offer	As posted	Historical equivalent
0.1 XMR brass · roll of 20	4 XMR	4 XMR ≈ 0.01930732 BTC ≈ $741
0.1 XMR nickel-plated brass · roll of 20	4 XMR	4 XMR ≈ 0.01930732 BTC ≈ $741
0.1 XMR rainbow nickel · roll of 20	7 XMR	7 XMR ≈ 0.03378781 BTC ≈ $1,296
0.25 XMR brass · roll of 20	5 XMR	5 XMR ≈ 0.02413415 BTC ≈ $926
0.25 XMR nickel-plated brass · roll of 20	5 XMR	5 XMR ≈ 0.02413415 BTC ≈ $926
0.25 XMR rainbow nickel · roll of 20	8.5 XMR	8.5 XMR ≈ 0.04102805 BTC ≈ $1,574
Twenty matching four-coin sets · four rolls	20 XMR	20 XMR ≈ 0.09653659 BTC ≈ $3,703
Twenty matching four-coin sets · rainbow version	26.5 XMR	26.5 XMR ≈ 0.12791098 BTC ≈ $4,906

Denomination at the post date

These values describe the loadable face amount, not the price of the metal collectible.

Item	Face amount	BTC and USD equivalent on 2021-01-10
Monero dime	0.1 XMR	0.1 XMR ≈ 0.00048268 BTC ≈ $19
Monero quarter	0.25 XMR	0.25 XMR ≈ 0.00120671 BTC ≈ $46

Reconstructed narrative

The release story

Maker statements and surviving thread evidence, organized as one continuous record.

Chapter

How the matching sets worked

Sets were sold through four rolls
A matching order contained 80 coins: four rolls of twenty, yielding twenty four-coin sets with coordinated random serial numbers. Individual four-coin sets were not offered.
Why no single sets
Smoothie cited the time required to match keys and serials across four types and to remake any coin rejected for hologram, key, or air-bubble problems.
Certificates
Single-roll orders received one PGP-signed message covering twenty digital certificates; coordinated orders received a PGP-signed certificate group for each numbered four-coin set.
Funding
Every coin had to be funded before shipment with exactly 0.1 or 0.25 XMR. The seller allowed four weeks for funding and put cryptocurrency-in-transit risk on the buyer.

Chapter

Rainbow-roll sellout trail

January 15
Five rolls of each rainbow denomination remained; later that day the count fell to three quarter rolls and four dime rolls.
January 16–17
The public count moved to two rainbow quarter rolls and three dime rolls, then one quarter roll and two dime rolls.
January 19
Rainbow quarter rolls reached zero while two rainbow dime rolls remained.
January 29
The maker posted that only one rainbow dime roll remained.

Chapter

The Tribal / Front Holo Easter eggs

Distinct face treatment
These rainbow nickel pieces carry an additional shimmering mask, sunburst, and micro-M pattern beneath the normal Monero M and horizontal-line field. The effect changes dramatically with the viewing angle and lighting.
Reported one per rainbow roll
Later collectors describe one Tribal / Front Holo coin as an Easter egg in every full twenty-coin rainbow roll. The subtype was not advertised in the surviving original sales post.
Reported quantity
With 300 rainbow coins in each denomination and twenty coins per roll, the release contained fifteen rainbow rolls per denomination. Collector accounts consistently report fifteen 0.1 XMR and fifteen 0.25 XMR Front Holo pieces, thirty total.
Evidence boundary
No surviving public first-party announcement from Smoothie has been recovered. The distribution and count are therefore labeled collector-reported, even though the stated one-per-roll method exactly matches the original rainbow mintage arithmetic.
Aftermarket documentation
A 2025 listing documented a PCGS-certified 0.1 XMR example as a “Hyper Tribal Rainbow” coin and described the micro Monero logos and face-applied pattern. Its $600 figure was an asking price, not a confirmed sale.

Archival notes

The first post was edited to “sold out,” removing the original fixed prices. The 300 rainbow pieces are described inside each 2,000-piece nickel-plated mintage.
The surviving public sales post does not name the Tribal / Front Holo subtype. Later collector posts consistently report one example per twenty-coin rainbow roll: 15 of the 0.1 XMR and 15 of the 0.25 XMR, 30 total. The arithmetic matches the advertised 300 rainbow coins per denomination, but the count remains collector-reported unless a first-party Smoothie statement is recovered.