397?
*Frantically looks it up*
Herts..... I have none of those, but I have many, many others, including off the top of my head (the ones without places I can't remember without looking them up or it is either West Yorkshire or Derbyshire, the pigeons of the UK glass making world and hardly bothering about):
2 City Of London, 6 Birmingham, 16 and 18 West Yorkshire or Derbyshire (I think), 29 Harringey, 41 Hull, 64 Newcastle, 76 Manchester, 147 Liverpool, 252 Cardiff, 253 Warwickshire, 270 Coventry... I think, the common as muck 301 and 303 West Yorkshire or Derbyshire, 317 Doncaster, 323 and 324 Gateshead, 386 and 387 Surrey (I think), 414 and 418 West Yorkshire or Derbyshire, 465 Scottish Highlands, the common as muck 478 St Helens, 490 Bristol, 524 Camden, 542 543 and 544 (all somewhere like Newham in London), 545 York, the common as muck 562 Bury, 589 Brent .... 886 and 887 Bath and North East Somerset... (I think), Euuurrrrggghhhh, you get the jist.
I don't have many numbered above 1000 though, especially over 1500 except for the common as muck 2043 and the 2137.
The numbering list:
http://math.colorado.edu/~rmg/pint/DTISTAMP.pdf
I need to get them all out and list them properly (as well as get out more!).