The box has been opened of course, the soundbox also likely has been used and judging from marks on the screws has been serviced. This servicing may of course have been some decades ago though.
The now salmon coloured wrapper originally was a more bright orange, judging from the bit left on the bottom of the box.
The soundbox is held in place by the thick card supports.
A 'new' spare HMV soundbox number 4 in its original packaging from '25 / '26.
Not sure what the N.G. in the type designation on the label is for. Could that be 'New Generation'?