Telegraphic block instrument, Tyer's No. 6 train tablet apparatus, by Tyer & Co. Ltd, London. Telegraphic block instrument
Telegraphic block instrument, Tyer's No. 1 train tablet apparatus, by Tyer & Co. Ltd, London. Telegraphic block instrument
Telegraphic block instrument, Great Western Railway type Tyer's No. 9 kt instruments, No. 696, by Tyer & Co., London. Telegraphic block instrument
Telegraphic block instrument, Tyer's No. 7 train tablet apparatus, by Tyer & Co., London. Telegraphic block instrument
Telegraphic block instrument, non-Western Region Tyer's No. 11 train key staff apparatus, numbered TAG 602 S, probably Ardgay / Lairg, by Tyer's & Co., London. Telegraphic block instrument
Telegraphic block instrument, Tyer's No. 1 train tablet apparatus, by Tyer & Co. Ltd, London. Telegraphic block instrument
Telegraphic block instrument, Webb & Thompson's Miniature Train Staff apparatus No. S11567, by the Railway Signal Co., Liverpool, with 16 staffs. Telegraphic block instrument, Webb & Thompson's Miniature Train staff apparatus
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. Telegraphic block instrument set and spares, Tyer's No. 7 train staff apparatus
Telegraphic block instrument, Tyer's No. 7 train tablet apparatus, by Tyer & Co., London. Telegraphic block instrument
Telegraphic block instrument, Webb & Thompson's Miniature Train Staff apparatus No. 2444, by the Railway Signal Co., Liverpool, no staffs, one maker's plate missing. Telegraphic block instrument, Webb & Thompson's Miniature Train staff apparatus
Telegraphic block instrument, Great Western Railway type Tyer's No. 9 kt instruments, No. 451, by Tyer & Co., London. Telegraphic block instrument
Telegraphic block instrument, Tyer's No. 6 train tablet apparatus from Aylsham signal box, by Tyer & Co., London, side panels missing. Telegraphic block instrument
Telegraphic block instrument, non-Western Region Tyer's No.11 train key staff apparatus, unnumbered with 1 key token, Ardgay / Lairg, by Tyer's & Co., London. Telegraphic block instrument
