The full name of this trolleybus is FBW Tr51 / Tüscher / Oerlikon (MFO). This machine was assembled at Maschinenfabrik Oerlikon factory in Zurich. FBW manufactured various trolleybuses referred as FBW Tr51 with different bodies. Trivia:
- Production: 1944-1944
- 6 machines were manufactured.
- Operation: Bratislava, No. 75-80.
- if you possess any information regarding this trolleybus or want to know any technical specifications, contact me.

Cheers!

Small update: a FBW Tr 51 / MFO trolleybus was also spotted in Zurich, whose construction was likely to be identical with this one. I have to check whether Tüscher contributed to the assemblage. If not, the Zurich FBW types should be called FBW Tr 51 / MFO unless I find a more precise name!

Best regards!

Спасибо за информацию, теперь дело за редакторами базы данных чтобы внесли соответствующие дополнения в списки моделей. :-)

Это откидные башмаки? Я правильно понял?