Sherlock Valve amps, Melbourne, Australia.

“We started manufacture back in 1990 with the Signal Station preamps and  power amps.  All amps we made on the premises and most were made by myself as it is today.
Usually the date is on the inside the amp on a sticker.” [Source: Dale Sherlock, email 15/8/2008 ]

Image of amp number 3, made 1997.Sherlock amplification