Type 1 see lot 213 Tail of dragon goes past the D, Wings point to letters, curved sword, beaded frame
Type 2 see lot 215 Tail of dragon far from D and underneath, Wings point to M but not to D, straight sword frame has beaded border within line
Type 3 lot 226 only Tail of dragon further from D and underneath pointing upwards, Wing tips do not point to letters. frame of two lines
Type 4 lot 243 only Tail of dragon under the D, Wings point to letters, curved sword differs from type 1 in that is cruder and M further from shield, beaded frame.
Houben lists 3 members of the Delmotte family but we’re interested here in Jacques Delmotte. Eugene Lambert Delmotte was also born in Brussels but worked in Gent – there’s three of his weights in the sale too – lots 248-250.
All these weights and more are in our next postal auction: MB68 Simmons Gallery, ending 12 noon BST on 30 September 2014 for bids. See website for details.
As soon as you publish something there’s always going to be more information available. We are reliably informed that there are several more types from Delmotte and here they are (not in the auction but just for your reference)
Wittop Koning, D A & Houben, G M M 2000 Jaar Gewichten in de Nederlanden1980 Lochem, see p 194-195
Dieudonne Manuel des poids monetaires, 180pp 16 plates, Paris 1925, plate XVI no.22
Pommier, Aime, Monnaie de Paris 1999, Poids Monetaires, 1. Poids pour monnaies de France Chapter 3 (section 3.B.1 p77 no 407 (our type 1) and now 408 and 410 (type 2)
Alphonse de Witte, Deneraux et leurs ajusteurs, 1899, Bruxelles
Also local parish registers and state archives (thank you LS for the extra information)