Line drawing of <a href="https://en.wikipedia.org/wiki/it:CMASA_C.S.15" class="extiw" title="w:it:CMASA C.S.15">CMASA C.S.15</a>
<a href="//commons.wikimedia.org/wiki/User:CortoFrancese" title="User:CortoFrancese">CortoFrancese</a>
<span class="int-own-work" lang="en">Own work</span>