Thanks for your ID Emmanuel! Do you also know the origin of these guns?
I found the first pair of pictures somewhere on the internet, many years ago... The third picture comes from the "Beeldbank Brugge" (
http://www.beeldbankbrugge.be). It is wrongly tagged as "Zeebrugge" (picture number BRU001022455).
I didn't realise that there were two guns in Lissewege. When I looked at the pictures again, my initial thought was that there were two barrels visible in the first picture... But on close examination, the second barrel appears to be the hoist for the ammunition.
One of my colleagues owns one of the meadows at the former Stützpunkt. Just had a discussion with him. Some of the elderly people in Lissewege confirm that there were two railway guns. Some people say that there was only one gun... But none of these people ever saw them, civilians weren't allowed there... On the other hand, Service Marc also mentions two railway guns in their report from 1943.
Regards,
Jan