France 20 unit
Dark Blue demo (internal trial)
3 digit control 092 coded
One of the very early trials or demo for France Telecom.
3 digit controls from L&G are either from series 0 or series 5
Series 0, begins with lowest control 001 to highest seen 123
Series 5, begins with lowest control 501 to highest seen 532 with sub groups used for some of the later numbers ex.523 1, and 523 2 but are still part of the 500 series