For Tenshi no Sato FCS, the number engraved on the headplate will be something like 'F.2716'. The 'F' stands for 'Full Choice System', and the number indicates what number order your doll is. For example, '2716' is the 2716th FCS ordered at Tenshi no Sato.

The LA Tenshi no Sumika has a number system similar to Tenshi no Sato. LA Sumika headplates have a number something like 'TF.0003'. We're not sure what the 'TF' stands for exactly, we can only guess that it means 'Tenshi no Sumika Full Choice System'.

For all other Tenshi no Sumika FCS, the number engraved on the headplate will be something like '05.10/FS'. The number indicates the date your doll's order was placed at a Sumika. For example, '05.10' means October, 2005. For the letters, the 'F' stands for Full Choice System, and the letters after it indicate which store your doll was ordered at.

We are still trying to find out all possible letter combinations on Sumika FCS headplates, and work out which stores they correspond to, so any additional information or letter combinations are very welcome! Please email info to seraphim@angelden.net. Thank you! (^o^)

Known letter/store associations:
FS -- ordered at Tenshi no Sumika Shinjuku Alta
FGI -- ordered at Tenshi no Sumika Ginza
FN -- ordered at Tenshi no Sumika Nagoya
FSA -- ordered at Tenshi no Sumika Sapporo
FA -- ordered at Tenshi no Sumika Akihabara
FH -- ordered at Tenshi no Sumika Harajuku
FHR -- ordered at Tenshi no Sumika Hiroshima
FL -- ordered at Tenshi no Sumika Lalaport
FK -- ordered at Tenshi no Sumika Kobe
FO -- ordered at Tenshi no Sumika Osaka
FKZ -- ordered at Tenshi no Sumika Kanazawa

Possible guesses for letter/store assocations:
FKS -- could be Tenshi no Sumika Korea, Seoul?

Other known letters:
FI -- ?
FC -- ?

Remaining stores to confirm:
Utsunomiya
Tachikawa