We cannot check serial numbers for you at the moment (either online or by email).
However, each Kent & Masters saddle has a size and model stamp on the flap. Use this guide to help you decipher the codes:
The two (or thee) digits are the seat size
These might come before or after the letters. In earlier saddles the ½ symbol is used.
15 = 15"
155 = 15½"
16 = 16"
165 = 16½"
17 = 17"
175 = 17½"
18 = 18"
The letters point to the saddle model
PLEASE NOTE: Unless specified below, the codes do not distinguish between S-Series and Original ranges
The stamps do not identify year of manufacture, but where ranges have been recently introduced or discontinued (or codes have changes) we have pointed this out to give you an idea of the saddle’s possible age.
Dressage Saddles

HDM | Dressage Moveable Block high wither (this code used from 2015 onwards) |
HDR or HWDR | Dressage high wither (Pre 2015) |
HDS | Dressage Surface Block high profile (this code used from 2015 onwards) |
LDM | Dressage Moveable Block low profile (this code used from 2015 onwards) |
DRL (or LDR) | Dressage low profile (Pre 2015) |
LDS | Dressage Surface Block low profile (this code used from 2015 onwards) |
MDM | Dressage Moveable Block standard wither (this code used from 2015 onwards) |
MDR (or DR) | Dressage standard wither (Pre 2015) |
MDS | Dressage Surface Block standard wither (this code used from 2015 onwards) |
DX or MDX |
Cob Dressage - S Bar (discontinued 2017/18) |
GP Saddles

DGC | S-Series Compact GP deeper gusset (re-named high wither Compact GP in 2013) |
HGC | S-Series Compact GP high wither (this code used from 2013 onwards) |
HGD | GPD high wither (discontinued 2017/18) |
HGP | GP high wither |
LGC | S-Series Compact GP low profile (introduced 2018) |
GA or MGA | Anatomic GP - R-Bar (2014-2018) |
GC or MGC | S-Series Compact GP standard wither |
GD or MGD | GPD - A GP saddle with straghter, slightly longer flaps (discontinued 2017/18) |
GP or MGP, also GPM | GP standard wither |
GU or MGU | Flat-Back GP |
GX or MGX | Cob GP |
LL or MLL | Pony Long Leg |
PO or MPO | Pony Saddle |
UGD | S-Series Universal GPD (introduced 2018) |
UGP | S-Series Universal GP (introduced 2018) |
DGP | Dutch GP (now called Flat-Back GP) S-Bar |
Jump Saddles

JJ or MJJ | S-Series Jump Saddle (introduced 2013) |
JU or MJU | Original Jump Saddle - S-Bar (discontinued) |
PJ or MPJ | S-Series Pony Jump Saddle (introduced 2013) |
XC or MXC | Cross country monoflap (discontinued 2013) |