Note 038
According to Chalcondyles and Phranza, the great cannon burst; an incident which, according to Ducas, was prevented by the artist's skill. It is evident that they do not speak of the same gun.
Note: They speak, one of a Byzantine, one of a Turkish, gun. Von Hammer note, p. 669]
The History Of The Decline And Fall Of The Roman Empire Fall In The EastChapter 68