Mick,
The Catalogue was out of date almost as soon as it was printed. :roll:
Korean production was rolling back and Chinese production was taking over.
The ALC53 and ALS48 were replaced with the ALC49 and ALS43, respectively. SG43 was replaced by SG38.
Neck remained maple, but body became Basswood. Slightly different saddles on the bridge as well.
The eBay item is a Chinese made ALC49. The serial number tells me so.