Hi,

An interesting thread, and perhaps I could contribute a little to it

.

I have gone through my collection of Amstrad/Schneider CPC computers, and the number of revisions could be high. If You turn a CPC upside down, You'll find the

**serial number**, and on most machines also a MFR'S number or something like that. On many machines it is a yellow label with a letter.

Obviously

**MFR** means

**M**anu

**F**acturers

**R**evision number.

My computers has the following numbers :

Machine Serial RevisionAmstrad CPC464 535-8505506 B

Amstrad CPC464 148218 K31-4X ??

Amstrad CPC464 10631 K32-4X E

Amstrad CPC464 06730 -90-12 ??

Amstrad CPC464 24656 -91-01 I

Schneider CPC664 86340 K32-54 A

Amstrad CPC6128 133790 K32-57 A

Amstrad CPC6128 222758 K32-5X I

Amstrad CPC6128 222742 K32-57 I

Amstrad CPC6128 532 6805853 D

Amstrad CPC6128 542 9310181 K

Schneider CPC6128 136998 K31-56 E

Schneider CPC6128 151494 K32-57 E

Schneider CPC6128 532 6523111 B

464 plus 531-0782924 A (ESP)

*464 plus (board only : MC0122C [7]*6128 plus 531-0754346 B (FRA)

6128 plus 531-0760453 B (FRA)

GX4000 735-0919698 B

GX4000 735-0958752 C

GX4000 735-0959167 C

I have opened the GX4000's and the letters on the back does match the numbers on the PCB (at least for these machines)

I could make scans of the prints if anyone interested.

Yours

**Terje Grind****Norway**