see
http://www.tractiontalkforum.com/showthread.php?t=14007
A little bigger than a Manzel, 2/3ds the price!
Scrol down just beneath the lamps.
Mechanical Lubricator - 'Reliance' to Venables & Blackmore patent by C W Richardson Stockport. Still has oil in it and pumps 6 x 4 in plan, 7 inches tall.