QL missing the ID number

[klausfrank]

I got very surprised when I looked at back of a QL I got at a fleemarket. The was no ordinary ID on the back, only a small label with the text AR 112817. Anyone who know about this way of marking.?
Regards

PS. Take care.

[klausfrank]

I missed the picture. Sorry

[Chr$]

I've had them like that before (my Finish model just had an AR sticker). I believe it denotes a Frankenstein QL, made up of parts that were leftover or repaired in the past.

Urs explains it better:

"QL's reworked/refurbished/repaired after DOA return have a white rectangular sticker with a printed number in the format AR1zzzzz, where A stands for AB Electronics, R stands for Rework and zzzzz is the sequential number of the rework."

From: http://www.sinclairql.net/build_standards.html

Not sure if they can therefore have both a green stamped serial and an AR sticker.