appar p.822 Ballista...
http://lila-erc.eu/data/lexicalResources/NLW/id/attestation/29633 <http://www.w3.org/nl/lemon/frac#Attestation>
appar p.822 Ballista...
appar p.822 Ballistarii ... appendunt thecam bombardariam et pyxidem pulverariam.