Gibson
SG
Vintage
Year 1974
USA
pickup neck Gibson vintage  ( only cover changed )
pickup bridge Gibson classic 57 from 2014
serial number 891596 or 691596
brought from the USA to Switzerland by a guitarist who sold it to us, according to the usa shop year 1974.
The pick up neck marked Gibson is old or original (except the cover which is more recent).
The pick up bridge and a Gibson classic 57 from 2014.
The guitar sounds 100% AC/DC, 100% vintage rock.
It is possible that the original guitar was fitted with P90 pickups. For this reason the holes would have been enlarged for the installation of humbuckers. 
This guitar is easy to play and sounds great.