Online retailer Vintage & Rare is listing a 1971 Gretsch Roc-Jet once owned by AC/CD's Malcolm Young.
Here's the info from the site:
"This is a real beauty - and has a fantastic history. It's a 1971 Gretsch Roc-Jet complete with original case — the only unoriginal parts are the pickup surrounds which were replaced with exact parts about 10 years ago. What makes this guitar so special is it was previously owned by MALCOLM YOUNG OF AC/DC! It was bought by his guitar tech Keith Evans for a U.S. tour and originally destined for parts, but Malcolm enjoyed playing it, and used it mainly in soundchecks. The guitar was subsequently given to Keith and purchased by current owner in the late 1990s, together with a letter of provenance. A classic guitar with a pedigree history.
£2750 or nearest offer. Guitar will ship from owner in U.K."