Rod,
They were also used on Sundays until residents objected about the noise.They must be short of W class trams or crews as Z & A class have been operating weekday daytime services.
Jeff
--- On Fri, 27/4/12, Roderick Smith rodsmith@...> wrote:

From: Roderick Smith rodsmith@...>
Subject: [transportdownunder] W6.977 (Vic., from Jeff) [1 Attachment]
To:transportdownunder@..., "'TramsDownUnder@yahoogroups.com'" tramsdownunder@...>
Received: Friday, 27 April, 2012, 9:30 AM

[Attachment(s) from Roderick Smith included below]
Chapel St at Dandenong Rd, Prahran (Melbourne, Vic.): W6.977 advertising
Chapel St, on route 78 North Richmond - Prahran, in an era when Ws were used
on the route on Saturdays. Sat.14.3.09. (Jeff Bounds)

Roderick B Smith
Rail News Victoria Editor