FN-ACEC trolleybus no. 544 on display at the The Wallonia Public Transport Museum in Liège. Manufacturers: Fabrique nationale de Herstal-ACEC (chassis and body), ACEC (engine), Englebert (tyres).
<a href="//commons.wikimedia.org/wiki/User:Nenea_hartia" title="User:Nenea hartia">Nenea hartia</a>
CC BY-SA 4.0
<span class="int-own-work" lang="en">Own work</span>