it would appear that the Viessmann banner-type signal you show, does work in a similar fashion the the UK prototype banner repeater........although the meaning of these signals is totally different!!
see http://www.sh1.org/eisenbahn/snsh.htm
as john woodall stated, it appears to be a shunting signal......
see http://www.sh1.org/eisenbahn/snsh.htm
as john woodall stated, it appears to be a shunting signal......
