I sure hope this is an acceptable question for the forum! Included in a box of LF parts I purchased was a Ferd. Franz Meyer, Blasewitz-Dresden Lysioskop No.3 D.R.G.M. (f7.7-44) lens. I have little interest in brass barrel lenses & would just like to know if this is a lens of interest to those who have interest in these things.(whadhesay?). Seems to be in very nice condition, both barrel and glass...the diaphram is slightly stiff. Just to satisfy my curiosity, can anybody tell me the vintage/intended process use and whether this was considered a "quality" piece of glass? Thanks in advance!