all my allens have a different seriel number.
and a different name too.
2mm allen jnr
4mm claire
5mm allen
6mm julian
8mm george
10mm allen snr.

fill in the gaps as you see fit. it is a full set i just dont remember all there names these days it's been so long.
I also have the imperial set. but there all named after dictators so i wont go into that.