"Schneebeli" and "Birger" silencers (1923)
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Si TECHNICAL MEMORANDUMS NATIONAL ADVISORY COMMITTEE FOR AERONAUTICS. ^aJ^ I 5 ■ B or No. 213 "SCHNE33ELI" AND "BXBGER" SILENCERS. By Charles Dollfus. From "L'Aeror.autique," Kay, 1922.
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![An illustration from Monastica theologia. Continens dubia et acroamata, circa leges & statuta, quibus praedicatorum familiae professores moderati, astringuntur, nec non circa tria vota religionis essentialia. : Omni religiosorum statui, per necessaria, ex sanctorum patru[m] doctrina, ex scholastica theologia, & vtriusq[ue] iuris regulis, nec non ex summorum pontificum indultis, & concessionibus contexta. (1618)](https://img.insideoutlibrary.com/img/200/ia-monasticatheolog00pozo-339-0.webp)
