Yes Nick, shot some good pics and send them to Lex for fill the empty section on his site.
I've find a drawing of the grenade with long delay. The fuze has some differences with the norman one: "Zundschnur" (fuze cord) and "Korkpfropfen" (cork plug). Note the name V.P.17 of the right grenade.
I know this was the case with the German M1917 egg grenade. One practice grenade in every crate of 50, and it was general practice in WW1 for the Germans to have 1 practice grenade in every crate of all their grenades. The practice grenades, for that reason are much rarer that their live counterpart. How sweet it is!!!.....DanoHaving in mind that practically every crate of German WW1 hand grenades had 1 drill grenade, it is very likely that this is exactly one of these.
Re was always the colour of practice items in WWI. War items were always painted in grey, black, green, but never red.