Help to identify the different types of this 1992 10 pence please

https://en.numista.com/catalogue/pieces879.html


Several types.

I have 2 flat edge ones, but I don't know what type 1a,2a,1b,2b mean or how to identify them.

Can anyone help me please?

here is apic with Flat edge and wire edge

flat edge

wire edge

Other differences are with to tuff of hair on stomach of the lion. I dont have a 5 hair only four hairs, Hope this helps some
   yours daryl
Hopfuly the guys from the UK can help more

Type 1:"L" and "I" in "ELIZABETH" aligned between two dots.
Type 2:"L" and "I" in "ELIZABETH" aligned to dot.

Type A: "1" in "10" aligned to dot, Four tufts under chest, lowest hair of mane detached from back of lion.
Type B: "1" in "10" aligned between two dots, Five tufts under chest, lowest hair of mane attached to back of lion.

e.g.
1A
Type 1:"L" and "I" in "ELIZABETH" aligned between two dots.
Type A: "1" in "10" aligned to dot, Four tufts under chest, lowest hair of mane detached from back of lion.