Clay pipes

[Arabant]

Does anybody know anything about the age, origin and value clay pipes in general ? I have this one (Col. Jameson stamped on the stem) and others as well e.g skull, hand holding a vessel, Face of Lord Beaconsfield and one from an army regiment. (These were dug in South Africa.) Thanks

 

[JGUIS]

Those white type are called clayolin(sp) I'm pretty sure they started those around the 1850s or so. I have one with an eagle and 13 stars, but there are hundreds of designs.