Beck London microscope

From: Fénix (micuenta_at_hotmail.com)
Date: 06/29/04 

Date: Wed, 30 Jun 2004 00:48:44 +0200

Hello.

Can anybody point me some web page, link etc. where I find information
and/or operation manual for binocular contrast phase microscope by Beck
London Ltd., ca. 40s-50s, model 48, serial nº 22779? It has phase rings and
objectives 2, 4, 8 and 16 mm.

Thanks

Antonio