June 20, 1913.

THE COLLIERY GUARDIAN.

1353

All Users of Valves
of any kind, or for any purpose,
will find much information in this
volume. It is not the usual trade
catalogue.

A free copy will be sent to
engineers and other responsible
enquirers on application to

Alley & MacLellan

LTD

“ Sentinel ” Works

Polmadie - - Glasgow

Telegrams:	Telephone:

Alley, Glasgow.	751 Queen’s Park

(5 Lines)