drivr, A 'G' s/n prefix can be valid from any one of the three English No.4 manufacturers during '42. The digit immediatly following the prefix, or at least in the area, should be a '1', a '2' or a four numeral number. If you can post a picture of the left side of the butt socket it'd be a great help.

The FTR (F) means that at sometime it was re-arsenaled at Fazakerley.

Brad