Strange matchlock pistol for ID CHINA ?

[Cerjak]

At last I found the origin from this very scarce matchlock pistol .
It will be nice if a member couls post one scan from “Islamic Weapons - Maghrib to Moghul" di Anthony C. Tirri", pag. 371, fig. 268” AS I don’t have this book
Best
CERJAK

dating: 18th Century
provenence: Ceylon
Round iron barrel completely engraved with wave design, breech brass plate with monogramm "AT" and floral engravings, 13 mm cal.; interesting leftside iron lock with brass pan and automatic pan cover mechanism; wooden full stock with engraved brass mounts and wooden ramrod.Illustrated in "Islamic Weapons - Maghrib to Moghul" di Anthony C. Tirri", pag. 371, fig. 268.
Most probably Portuguese craftmanship. The Only one known to exist.