Allright, here are the as promised new pix.

I hope they can prove some more light in the darkness of what the frame really is.

On the little casting at the rearbrake it's chrome and hardly readable, but it reads
mod. guipiemme and a bird/wings

Also we discovered too late that on the horizontal chainstay there is a large dent (we make more pix from that tomorrow)
Can this be a indications of some brand that has done that.

Looking forward to hearing from you.

Thanks in advance.