Fourree Coinage
A fourrée is a counterfeit coin which is made from a base metal core plated with a precious metal to look like its solid metal counterpart.

Production of fourrées began almost as early as the production of the first coins in the 7th century BC.

The most common method for producing a fourrée was to take a flan of copper, wrap it with silver foil, heat it, and strike it with the dies. If the coin was sufficiently heated and struck hard enough, a layer of eutectic alloy would be produced, fusing the layers together.
An Fourree Denarius struck After 206 BC in Uncertain
Obverse: Helmeted head of Roma right; X (mark of value) to left.

Reverse: The Dioscuri, each holding spear, on horseback right; two stars above; ROMA in exergue.

Diameter: 19.5 mm
Die Orientation: -
Weight: 3.42 g
No notes for this coin
Imitating Crawford 53/2 (Brinkman Group 9)
An Fourree Denarius struck 221 in Rome
Obverse: draped bust right; IVLIA AQVILIA SEVERA AVG

Reverse: Concordia standing left, sacrificing out of patera over lighted altar, holding double cornucopiae, * left; CONCORDIA

Diameter: 19 mm
Die Orientation: -
Weight: 1.66 g
Unofficial mint
RIC IV 225, RSC III 2a, BMCRE V 185
An Fourree Denarius struck 15-13 BC in Lugdunum
Obverse: AVGVSTVS DIVI•F, Bare head of Augustus facing right

Reverse: Bull butting to the right; IMP•X in exergue

Diameter: 19 mm
Die Orientation: 12 H
Weight: 2.18 g
IMP X="Proclaimed Commander-in-Chief for the 10th time"
RIC I (Second Edition) Augustus 167a
An Fourree Denarius struck 137 (136)BC in Rome
Obverse: helmet head of Roma right wreath left (XVI) ROMA

Reverse: the Dioscuri riding in opposite directions, heads turned confronting, each with star above his head and holding a spear C·SERVEILI·M·F

Diameter: -
Die Orientation: -
Weight: 2.6 g
fouré denarius, unofficial mint It's the first issue with ROMA on obverse and also Dioscuri are riding unconventionally from each other.
Crawford 239/1, Sydenham 525, RSC I Servilia 1, BMCRR Italy 540, SRCV I 116
An Fourree Denarius struck 41-42 AD in Rome
Obverse: TI CLAVD CAESAR AVG GERM P M TR P, Head of Claudius facing right, wearing laurel wreath

Reverse: PACI AVGVSTAE, Winged Pax-Nemesis advancing right, holding winged caduceus in left hand, pointing down at snake, holding out fold of drapery below chin with right hand

Diameter: 18 mm
Die Orientation: 6 H
Weight: 2.29 g
This exact match is not in RIC, this obverse inscription is the first listed and does not exist as a coin paired with this reverse. RIC 10 obverse is as follows "TI CLAVD CAESAR AVG P M TR P", GERM is clearly visible after AVG on this coin.
RIC I (Second Edition) Claudius 10 var. (Obv. insc.)
An Fourree Denarius struck 56 BC in Rome
Obverse: Head of Venus facing right, wearing laurel wreath and diadem; scepter on shoulder; SC behind

Reverse: Three military trophies between capis and lituus; FAVSTVS monogram in exergue

Diameter: 19 mm
Die Orientation: 1 H
Weight: 2.61 g
This moneyer was the son of the famous Lucius Cornelius Sulla, and his types honor his father
RSC Cornelia 63; Cr. 426/3
An Fourree Tetradrachm struck c. 324-320 BC in Arados
Obverse: Head of Herakles right, wearing lion skin

Reverse: Zeus Aëtophoros seated left; Σ in left field, AP monogram below throne.

Diameter: -
Die Orientation: -
Weight: -
No notes for this coin
Price 3316
An Fourree Denarius struck 235-236 AD in Rome
Obverse: IMP MAXIMINVS PIVS AVG, Bust of Maximinus facing right, seen from behind, wearing laurel wreath, cuirass, and drapery

Reverse: PAX AVGVSTI, Pax standing facing left, holding branch and scepter

Diameter: 20 mm
Die Orientation: 6 H
Weight: 3.24 g
No notes for this coin
RIC IV Maximinus Thrax 12
An Fourree Stater struck 540-510BC in Metapontion
Obverse: MET or META, Ear of Barley

Reverse: Incuse of obverse

Diameter: 20 mm
Die Orientation: 12 H
Weight: 4.86 g

A bronze core fourrée of the aforementioned coin with plating entirely absent.

Denomination also called "Nomos".

cf. SNG ANS 209-259
(10) Nerva
An Fourree Denarius struck 97 AD in Rome
Obverse: IMP NERVA CAES AVG P M TR P COS III P P, Head of Nerva facing right, wearing laurel wreath

Reverse: LIBERTAS PVBLICA, Libertas standing, holding pileus and vindicta

Diameter: 20 mm
Die Orientation: 6 H
Weight: 3.36 g
Domitian was assassinated on September 18th, 96 AD in a conspiracy by court officials. The Senate installed Nerva on the same day, mere hours later, and there is debate whether or not he was in on the plot. A damnatio memoriae (condemnation of memory) was passed on Domitian; his coins and statues were melted, his arches were torn down and his name was erased from all public records. Nerva had a short reign of fifteen months during which he tried his best to gain the support of the citizens and the soldiers, but died of natural causes at the age of 67, however, not before adopting popular military commander Marcus Ulpius Traianus who we know as "Trajan" to succeed him. Nerva was deified by the Senate and his ashes were laid to rest in the Mausoleum of Augustus.
Imitating RIC II 19, RSC 113
(11) Octavian
An Fourree Denarius struck 32-29 BC in Italia
Obverse: Bust of Venus facing right, wearing stephane and necklace

Reverse: CAESAR DIVI F, Octavian in military dress, cloak flying behind, advancing left, right arm extended, left hand holding transverse spear

Diameter: 17 mm
Die Orientation: 6 H
Weight: 2.54 g
Uncertain Italian mint, maybe Rome or Brundisium per RIC.

The below quote from puts the coin in context:

"In July 32 B.C., Octavian illegally obtained Antony's will and exposed it to the Roman public: it promised substantial legacies to Antony's children by Cleopatra and left instructions for shipping his body to Alexandria for burial. Rome was outraged, and the Senate declared war against Cleopatra (an important distinction, because Octavian did not want the Roman people to consider it a civil war). Octavian's forces decisively defeated the forces of Antony and Cleopatra at the Battle of Actium in Greece in September 31 B.C. In 30 B.C., Octavian chased Antony and Cleopatra to Egypt where they committed suicide. Octavian became master of the Roman world."
RIC I (2nd Ed.) Augustus 251; RSC I Augustus 70
An Fourree Denarius struck 120 (124)BC in Sardinia | Rome
Obverse: head of Roma right wearing winged helmet LABEO ROMA X

Reverse: Jupiter in quadriga right, holding reins and scepter, hurling thunderbolt, rostrum tridens below Q·FABI

Diameter: -
Die Orientation: -
Weight: 3.1 g
unofficial issue - fouré denarius After 124 B.C., the mark of value is represented either by (XVI) in monogram or X. The Rostrum on the reverse probably refers to the moneyer's grandfather and namesake and his naval victories in 189-188 B.C. -- Roman Republican Coinage by Michael H. Crawford
Crawford 273/1, SRCV I 148, Sydenham 532, RSC I Fabia 1
An Fourree Denarius struck 120 (122)BC in Sardinia | Rome
Obverse: head of Roma right wearing winged helmet RVF X

Reverse: Dioscuri riding on horses right, holding spear Q·MINV ROMA

Diameter: -
Die Orientation: -
Weight: 2.9 g
unofficial issue - fourré denarius the last or second last issue with Dioscuri
Crawford 277/1, SRCV I 152, Sydenham 421, RSC I Minucia 1
(14) Segobriga
An Fourree Denarius struck 130-80 BC in Segobriga
Obverse: head right, crescent behind M below

Reverse: horseman with spear riding right; SEKoBiRIKeS

Diameter: 0 mm
Die Orientation: 0 H
Weight: 2.5 g
No notes for this coin
ACIP 1869; SNG BM Spain 1049–51
An Fourree Denarius struck 129 (128)BC in Rome
Obverse: head of Roma wearing winged helmet, wreath left ROMA

Reverse: Victory in biga right, horses rearing, grain ear below T·CLOVLI

Diameter: 0 mm
Die Orientation: 0 H
Weight: 2.7 g

unofficial issue - fouré denarius Absence of value mark is very unusual in this period (if it isn't hidden in wheel).

Crawford 260/1, SRCV I 136, Sydenham 516, RSC I Cloulia 1
An Fourree Denarius struck 69-70 AD in Rome
Obverse: IMP.CAESAR.VESPASIANVS AVG, Head of Vespasian facing right, wearing laurel wreath

Reverse: TITVS ET DOMITIAN CAES PRIN IV, Titus and Domitian, seated facing left side by side on curule chairs, each holding branch extended in right hand, left hands at side

Diameter: 19 mm
Die Orientation: 6 H
Weight: 2.27 g
No notes for this coin
RIC II (Part 1) Second Edition Vespasian 6