The pan fixtures are quite nice, however it looks to me like the shades are all reproductions from the 70's onwards. One of the sconces with the 3 lights in it is from the beginning of electricity when you wanted your friends to see that you were progressive & had electric light bulbs. This is why there is no shade holder on the sides.
The pan fixtures are from the late teens to early 30's.
Not sure what exactly you are asking for, value, style? There are some books out there, but need to know what info you would like. GG