One of my Falconnier bricks has "
DR 10708" emossed on the seal. I thought
DR might be another abbreviation for
DRP (Deutsches Reichspatent) but an espacenet search for German patent# 10708 turned up something which didn't match (
https://worldwide.espacenet.com/publicationDetails/originalDocument?CC=DE&NR=10708C), although the date (1880) is about right. Well, it found "10708(C)" whatever that means.
Suggestions as to what else could it be?
Also, are there tables anywhere which show German patent# ranges for a given year? I'm particularly interested in historic stuff, late 19th century and early 20th.