The trail of the pagers that blew up in Lebanon around 3:30 p.m. Tuesday, killing or maiming thousands and sparking fears of a new Middle East war, leads to a small post-box office wedged between a highway and a dilapidated railway station in Budapest.

A Taiwanese company has said that it authorized its brand on the pagers that exploded in Lebanon and Syria but that another company based in Budapest manufactured them.

Taiwan-based company Gold Apollo said the AR-924 pagers used in the attack were manufactured and sold by Hungarian company BAC Consulting, which held a license to use Gold Apollo’s brand on the device