Who made it and when? Padlock-shaped mark with "EPBM" on teapot only. All three pieces have "C1646" hand-scrawled--too early to be circa date for EPBM, perhaps a catalog number? Thanks ever so much for any and all assistance!
[The photo of the mark is a little fuzzy, I know!--but the the mark in question is in the shape of an old, closed padlock (the kind that used a skeleton key) with a keyhole]
http://photos.yahoo.com/darthkei