Due to my personal lists as Billy G. stated, leaders daggers do change around 2200 from stamped (lower numbers) to etched (higher numbers) numbers.
Hewers obviously did change somewhere between 1100 and 1400.
It is also interesting that the numbering of daggers/hewers is a mixup, which means eg. a hewer has #1100, a leader�s dagger #1101 and perhaps the next one could be a hewer again with #1102.
Regards,

wotan, gd.c-b#105

"Never look for sqare eggs" as a late owner of an original FHH-dagger used to say.