Telegraphic block instrument set and spares, Tyer's No. 7 train staff apparatus

Made:
Liverpool

Telegraphic block instrument set and spares, Tyer's No. 7 train staff apparatus, by the Railway Signal Co., Liverpool, LMS, restored at Crewe for NRM use.

Details

Category:
Signalling & Telecommunications
Object Number:
2001-7993
Materials:
metal (unknown) and brass (copper, zinc alloy)
type:
telegraphic block instrument
credit:
British Rail, Clapham