ROMANO-BRITISH COINS. 69 



LlCINIUS I., A.D. 307 tO 324. 



Third-brass. 

 21. O. IMP. LICINIVS. P.P. AVG. Laureate bust to right, 



with cuirass. 

 R. GENIO. POP. ROM. In ex: PLN. In field S.F. 



Genius with cornucopia and patera. 



The letters PLN and the lengthened form PLON are now 

 definitely accepted as the marks of the Roman mint in London, 

 and may be interpreted as Pecunia Londiniensis or Percussa 

 Londinii. Licinius the elder, on succeeding to the highest 

 honours of the state, became the colleague of Galerius 

 Maximianus in the control of the Empire. He afterwards married 

 the sister of Constantine the Great, and later on the East and 

 West were separately governed by the two brothers-in-law. 



CONSTANTINE I., A.D. 311 to 337. 



Second-brass. 



22. 0. CONSTANTINVS. P.F. AVG. Laureat bust to right, 



with cuirass. 



R. ADVENTVS. AVG. In ex: PLN. In field a star. 

 Equestrian figure of the Emperor to left, in front of 

 him a captive seated on ground. 



Another and a finer specimen of this scarce reverse is in the 

 D.C.M. The entry of Constantine into Rome in the year 312, 

 alter the overthrow of all rivals, is here commemorated. 

 Third-brass. 



23. 0. CONSTANTINVS. AVG. Laureate bust to right, 



with sceptre. 



R. BEAT. TRANQLITAS. In ex: PLON. Altar 

 inscribed VOTIS XX., above which are a globe and 

 three stars. (A.D. 320-24). (D.C.M.) 



London mint. These votive coins were originally struck to 

 mark the public vows made by the Emperors every ten years in 

 return for a renewed grant of power by the Senate. At this date 



