Sentence:  This iron cannon with a single muzzle band, without trunnions and with an oversized <WSD>cascabel</WSD> is believed by many to be the original “Come and Take It” cannon and is displayed at the Gonzales Memorial Museum and occasionally elsewhere within Texas. 
Meaning of the word marked with <WSD> tags:  A knob at the end of a cannon, cast onto the gun barrel, to which ropes are attached in order to control recoil.