Below is a list that may help you identify your foreign coins.

Coin's Motto or Legend --- Country of Origin
- Large, ornate 'A' --- Finland or Russia
ACORES --- Azores
AFERIKA BORWA --- South Africa
AFRIKA - DZONGA --- South Africa
AFRIQUE OCCIDENTALE --- French West Africa
ALGERIE --- Algeria
APKTNKYLOnb --- Spitzbergen
AZERBAYCAN --- Azerbaijan
BALLIVIE INSVLE DEGERNEREVE --- Bailiwick of Guernsey
BAYERN --- Bavaria
BELGEN --- Belgium
BELGES --- Belgium
BELGIQUE --- Belgium
BELGISCH CONGO --- Belgian Congo
BHMAY --- Mongolia
bocHA --- Bosnia
BOHMEN UND MAHREN --- Bohemia and Moravia
BRITANNIARUM --- Great Britain
BRITT --- Great Britain
BRODRAFOLKENS --- Sweden
BUNDESREPUBLIK DEUTSCHLAND --- German Fed Republic
BURKINABE --- Burkina Faso
- Large, ornate 'C', IX or X --- Denmark or Sweden
CABO VERDE --- Cape Verde
CAMBODGE --- Cambodia
CCCP --- Russia
CESKA --- Czech Republic
CESKOSLOVENSKA --- Czechoslovakia
CHERIFIEN --- Morocco
CHON --- Korea
COLONIAR BRITAN --- British West Indies
COM --- Kyrgyzstan
COMORES --- Comoros
CONGO BELGE --- Belgian Congo
COTE D'IVOIRE --- Ivory Coast
CTOTNHKN Bulgaria
CYM --- Uzbekistan
D.G.REG.F.D. --- Great Britain
DANMARK --- Denmark
DANSK AMERIK --- Danish West Indies
DANSK VESTINDIEN --- Danish West Indies
DEGERNEREVE --- Guernsey
DEUTSCH KIAUTSCHOU CEBIET --- Kiau Chau
DEUTSCH OSTAFRIKA --- German East Africa
DEUTSCHE DEMOKRATISCHE --- German Democratic Republic
DEUTSCHER LANDER --- German Federal Republic
DEUTSCHES REICH --- Germany
DEUTSCHLAND --- German Democratic Republic
DOA --- German East Africa
DOMINICANA --- Dominican Republic
EAST INDIA COMPANY --- British India or Straits Settlements
EESTI VABARIIK --- Estonia
EIRE --- Ireland
EIREANN --- Ireland
EMPIRE CHERIFIEN --- Morocco
ESPANA --- Spain
ETATS DE L'AFRIQUE DE L'OUEST --- West African States
- Large, ornate 'F' VII --- Denmark
FERENCZ JOZSEF --- Hungary
FILIPINAS --- Philippines
FOSTERLANDET --- Sweden
FRANCAISE --- France
FRANCAISE DES SOMALIS --- French Somaliland
FUJAIRAH --- Al-Fujairah
FUN --- Korea
GABONAISE --- Gabon
GRONLANDS --- Greenland
GUINE --- Portuguese Guinea
GV (crowned) --- Sweden
- Large, ornate, crowned 'H' --- Russia
HELVETIA or HELVETICA --- Switzerland
HIBERNIA --- Ireland
HRVATSKA --- Croatia
ISLAND --- Iceland
JUGOSLAVIJA --- Yugoslavia
KA3AKCTAH --- Kazakhstan
KERAJAAN BRUNEI --- Brunei
KIBRIS CUMHURiYETi --- Cyprus
KRYOLITHBRUD --- Greenland
LATVIJA --- Latvia
LEON Asturias & Leon
L'ETAT INDEP. DU CONGO --- Congo Free State
LETZEBURG --- Luxembourg
LIBAN --- Lebanon
LIBANAISE --- Lebanon
LIETUVA --- Lithuania
MAGYAR --- Hungary
MAKEAOHNJA --- Macedonia
MALAGASY --- Madagascar
MAROC --- Morocco
MOCAMBIQUE --- Mozambique
MOHLOn --- Mongolia
- Large, ornate 'N' --- Finland
NED --- Netherlands
NEDER INDIE --- Netherland East Indies
NEDERLANDSE ANTILLEN --- Netherland Antilles
NORGE --- Norway
NOUVELLE CALEDONIE --- New Caledonia
NOUVELLES HEBRIDES --- New Hebrides (Vanuatu)
NUEVA GRANADA --- Colombia
OESTERREICH --- Austria
OESTERREICHISCHE --- Austria
OST --- German Empire
OSTERREICH --- Austria
PA3MbHHbIN 3HAKb --- Russian Caucasia
PERUANA --- Peru
POCCNN --- Russia
POLSKA --- Poland
POLSKIE --- Poland
PONTIFICIO --- Papal States
PREUSSEN --- Prussia
QUITTUNG UBER --- Lodz Ghetto (Poland)
QUOC-GIA VIET-NAM --- South Viet Nam
- Large, ornate 'R', IX or X --- Denmark
- Large, ornate 'R' VI --- Norway
- Large, ornate 'RF' --- France
SACHSEN --- Saxony
SALOTE TUPOU --- Tonga
SCHEIDE MUNZE --- German states
SCHEIDMUNZE --- Austria
SHQIPERI --- Albania
SHQIPERISE --- Albania
SHQIPNI --- Albania
SLOVENIJA --- Slovenia
SLOVENSKA --- Slovakia
SO'M --- Uzbekistan
SUKARNO --- Irian Barat or Riau Archipelago
SUOMEN TASAVALTA --- Finland
SVERIGES --- Sweden
SYRIE --- Syria
TATAPCTAH --- Tatarstan
TAUFA' AHAU TUPOU --- Tonga
TbBA ARAT RESPUBLIK --- Tannu Tuva
TCHAD --- Chad
TIMOR-LESTE --- East Timor
TNNNH (backward N's) --- Uzbekistan
TUNISIE --- Tunisia
TUPOU --- Tonga
VEBA Bulgarian leva
VIET-NAM CONG-HOA South Viet Nam
VIET-NAM DAN-CHU CONG-HOA North Viet Nam
W (crowned) Netherlands
YANG --- Korea
YEN --- Japan
YKPAIHA --- Ukraine
Z.A.R. --- South Africa
ZHONGGUO RENMIN --- China
ZU3UUSUJ --- Armenia

*The information above can be found @Worldcoingallery.com. A wonderful site for identifying foreign coins.

Roman Numeral Reference:
(I=1)(II=2)(III=3)(IV=4)(V=5)(VI=6)(VII=7)(VIII=8) (IX=9)(X=10)
(XX=20)(XL=40)(XLVIII=48)(L=50)(LXXXVIII=88)(XC=90 )(C=100)
(CC=200)(CD=400)(D=500)(M=1000)(MCMX=1910)(MM=2000 )(MMM=3000)
_
V= 5,000
_
X= 10,000
_
L= 50,000
_
C= 100,000
_
D= 500,000
_
M= 1,000,000

*Sometimes additives and double subtractive’s were used.
Example of additives: (IIII or VIIII instead of IV or IX)
(MDCCCCX instead of MCMX)
Example of double subtractive’s: (XIIX or IIXX instead of XVIII)
*Sometimes V or L were not used: (IIIIII or XXXXXX instead of VI or LX)
*Sometimes j was used to replace the final i.
This is done to prevent misinterpretation (iij = 3, iiij = 4, vij = 7)
This is rare on a coin, normally used on script.

To help the confusion, some Medieval Roman Numerals.
I=1
A,V=5
Ϛ=6
A,Z=7
X=10
O=11
F=40
L=50
S=70
R=80
N=90 or null meaning 0 zero.
C=100
Y=150
K=151
T=160
H=200
E=250
B=300
P,G=400
Q,D,A=500
M=1000
Z=2000

Modern Arabic number reference:
(٠‎=0)(١‎=1)(٢‎=2)(٣‎=3)(٤‎=4)(٥‎=5)(٦‎=6)(٧‎=7)(٨ ‎=8)(٩‎=9)