I recently picked up a K31icon in nice condition. Serial number indicates 1951 manufacture.

Questions are:

1. Saw a youtube video that indicated buttplate and rear barrel band were serial numbered. Mine aren't. All existing serial numbers (barrel, receiver, bolt, mag, stock, handguard) match. Were buttplates and barrel bands serial numbered and if so, is it possible that it wasn't done at that relatively late manufacture date. My rifle has the feel of an all original piece.

2. The wood on mine is very nice overall. Would like to know of recommendation for light cleaning that won't damage the overall nice condition and patina.

Thanks,
Dale
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