Odessos is one of the oldest ancient settlements in Bulgaria. It was established 585–550 BC by Miletian Greeks at the site of an existing Thracian settlement.
Odessos was a member of the Delian league of 425 BC. In 339 BC, it was unsuccessfully besieged by Philip II, and it but surrendered to Alexander the Great in 335 BC.
Shortly after 108 BC, Odessos recognized the suzerainty of Mithridates VI of Pontus. It was annexed to the province of Moesia (later Moesia Inferior) in 15 AD, and had prominent public baths, Thermae, erected in the late 2nd century AD.
In 442 AD, a peace treaty between Theodosius II and Attila was conducted at Odessos. It has also been suggested that the 681 AD peace treaty with the Byzantine Empire that established the new Bulgarian state was concluded at Varna.
            
            Odessos was a member of the Delian league of 425 BC. In 339 BC, it was unsuccessfully besieged by Philip II, and it but surrendered to Alexander the Great in 335 BC.
Shortly after 108 BC, Odessos recognized the suzerainty of Mithridates VI of Pontus. It was annexed to the province of Moesia (later Moesia Inferior) in 15 AD, and had prominent public baths, Thermae, erected in the late 2nd century AD.
In 442 AD, a peace treaty between Theodosius II and Attila was conducted at Odessos. It has also been suggested that the 681 AD peace treaty with the Byzantine Empire that established the new Bulgarian state was concluded at Varna.
Modern location: Varna, Bulgaria
                    (1)
                                 Gordian III
                            
                
                
                 
                
                
                    
                        An
                        AE
                                        Pentassarion
                                    
                        struck                             238-244 AD
 in
                                        Odessos
                                    
                    
                
                
                
                                Obverse: laureate, draped and cuirassed bust right from behind confronting draped bust of Serapis with cornucopia wearing kalathos left; AVT K M ANT ΓOPΔIANOC / AVΓ
                            
                            
                                Reverse: Nike advancing right, holding wreath and palm; O_ΔHC_CEITΩN / E
                            
                            
                            Diameter: 
                                28 mm
                            
Die Orientation: -
Weight: 14.7 g
                            
                        
                        
                        Die Orientation: -
Weight: 14.7 g
No notes for this coin
                        
                                Varbanov 4522, (die match CNG e390/304)
                        
                    
                    (2)
                                 Gordian III
                            
                
                
                 
                
                
                
                
                                Obverse: AYT K M ANT ΓΟΡΔΙΑΝΟC AVΓ (ligate) CE TPANKVΛΛINA - laureate, draped and cuirassed bust of Gordian III right facing draped and diademed bust of Tranquillina left.
                            
                            
                                Reverse: OΔΗCCEITΩN / E - Athena standing facing, head left, holding spear and resting on shield; E in left field.
                            
                            
                            Diameter: 
                                26.2 mm
                            
Die Orientation: 12 H
Weight: 11.43 g
                            
                        
                        
                        Die Orientation: 12 H
Weight: 11.43 g
Gordian III and Tranquillina.
                                Varbanov 4565.
                        
                    .jpg) 
                
                
                    
                        An
                        AE
                                        Pentassarion
                                    
                        struck                             238-244 AD 
 in
                                        Odessos
                                    
                    
                
                
                
                                Obverse: AVT K M ANT ΓOPDIANOC AVΓ CE TPANKVΛ-ΛEINA: Confronted busts of Gordian on left, laureate, draped and cuirassed, and Tranquillina on right, draped and wearing stephane
                            
                            
                                Reverse: OΔHCCЄITΩN: Nemesis standing left, holding wand over wheel, and sceptre.
                            
                            
                            Diameter: 
                                26 mm
                            
Die Orientation: 1 H
Weight: 13.54 g
                            
                        
                        
                        Die Orientation: 1 H
Weight: 13.54 g
No notes for this coin
                        
                                AMNG I, 2394; SNG Copenhagen 687; Varbanov 4583-6
                        
                    
                    (4)
                                Odessos
                            
                
                
                 
                
                
                
                
                                Obverse: laureate head of Zeus right
                            
                            
                                Reverse: the great god of Odessos with causia on head, holding cornucopiae, on horseback pacing right; (HΔP), OΔHΣITΩN
                            
                            
                            Diameter: 
                                20 mm
                            
Die Orientation: -
Weight: 6.54 g
                            
                        
                        
                        Die Orientation: -
Weight: 6.54 g
No notes for this coin
                        
                                AMNG 2200; Mionnet 890.
                        
                    