You have obviously done your research, and as you say `Know your market`. With particular reference to Toby Jugs, I do know that some are collectable (Politicians, Historical figures), and again as you say `Branded` collectables will sell, but I go to local auctions and see a lot of `Toby Jugs` on offer, those few that do sell go for very low prices. Please take this as comment, not criticism. All the best.