GPO/BT (British Telecommunications) engineers leather tool bag containing: A multi range meter 12D/1 with its original leather case, test telephone 290 by Hosiden Besson ltd., two BT soldering irons with 50 v transformer, one Weller 50v, 35 watt soldering iron, two BT 50v 35w Elremco soldering iron c.1979. A separate tool bag containing: BT oscillator no. 87F BT amplifier no. 109G two headsets for line testing a blue socket adapter a yellow socket adapter two soldering irons A BT torch GPO/BT no. 4 leather telephone engineer tool wallet case Phone maintenance equipment
