I'm wondering if someone has filed paperwork to state AT4242 has gone to England and someone has found this rifle and realised rifle 5L4242 (Longbranch) was sent instead and so this rifle has a sticker with some dodgy hand writing to highlight that the wrong rifle was sent or the wrong serial number was recorded. It appears to say somthing like '?????? #10 listed as gone to England 5L-4242 went to England'
I also suspect the person who wrote the note on the sticker was an idiot and was most probably the same individual who sent the wrong rifle in the first place. I don't think I've ever seen some one fluctuate back and forth between capitals and lower case letters so much in such a short note. Perhaps he was what we like to call 'A Blanket Stacker' AKA, a storeman.