Vacuum Advances

My thanks to those of you who responded.  As best I can determine, these 
are the correct vacuum units for Spridgets till 74.

948 cc:   5-12-6
1098 cc: 5-13-10 (same for MGB - may help you find one)
1275 cc: 5-8-3
998 cc: 3-8-14 (Mini Cooper)
NB: many Mini Coopers used the 23D distributor with has no vacuum advance

If any of you have vacuum advances spare, please let me know.

Regards,

Martyn

PS: Anybody know where you can get springs for a 25D/DM2/DM6 etc?