RF errors ...

4430 RF TL

pearl flaws ...

 

see FR TR ...

ovals weak, thin frame

4372

4435

4437

4469

4470

4480 OF

4399 OF

shades vary, but thin frame and fine details are common.  last 2 are dry prints ( see oval).  ovals missing frame lines in many cases

the above are possibly 1890 plate 52 ... or 1886 plates 39 40  1878 plate 11a

inverted watermark ...

most plates in lapidar group show inverted watermarks.  this is my first find