NEW NOVEMBER 2014. Instructions Nos. 490 to 495 issued by the GER, due to come into force on Friday 1 January 1909. These are a set of general signalling regulations combined to form a booklet of 132 pages (including a few blank ones).

They comprise instructions for Sykes' Lock and Block; for Tyer's Double Line Block Telegraph (the model with 2 indications); for Tyer's Double Line Block Telegraph (the one-wire instrument with 3 indications); for Tyer's Single Line Block Telegraph (with 2 indications); for Tyer's Single Line Block Telegraph (with 3 indications); and for the Electric Train Tablet (Tyer's No. 2 and 6 Instruments).  Each one begins with a drawing and description of the instrument concerned, followed by the detailed regulations which apply when using it.

The set of Instructions originally came with a cover, but that was missing. Instead, a reproduction of that cover is provided in this file - which explains why that page is so much tidier than the rest of the document! The first page after that, which provides an index, is stamped 'Fulbourne'.

This file will be available to download as soon as payment has been made. You go to your account and click on ‘Downloads’. New customers create an account as they place their order.