whats the number on the pipe you have?

the older 2 chamber pipes were pretty much all 9 numbers eg 9863, 9886 9853 etc apart from the 9901 which was a 3 chamber :eh?:
pretty much all the existing 3 chamber pipes had numbers starting with 2
2027,2047,2030,2032,2045 etc the only marked exception to this was the OS2050 which was a 2 chamber so aside from a couple of irregularities the earlier pipes were easy to categorise ;)

as for the numbers on the new deign 3 chamber pipes i suppose we just wait & see :rolleyes: