OOOOOOPS!
Hello friends,
thank you all for your detailed and nice answers! That's me who is a real jackass - today I've seen the lens under question, and you know what?
It's LINHOF TELE-ARTON 250/5.6, mounted in Compur 1. So I've disinformed you all
It's a rather modern and much improved lens, right? And it's designed apparently for 4x5'', so it should be very good for LF portraits? It's apparently single coated, and in a perfect state. Should I get it? I think yes, unless there's something really bad about it.
But I've spend today some money collected for the lens - as usual, another nice camera got in my viewsight
A perfect mint Yashica-Mat EM, looking new and working like new
So looks like I have to wait until my salary before I'm ready to get this Tele-Arton.
Cheers, and thank you again - Zhenya