May 23, 1913.

THE COLLIERY GUARDIAN.

1081

______________________________________________

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)