Late 1800s GPO resistance box – telegraphy / telephony

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Late 1800s GPO resistance box – telegraphy / telephony In good condition, missing pegs and fastening brackets underneath. Serial number GPO 20 and former BT museum exhibit. Marked 2.5, 5, 10, 20, 40 and 80 ohms in the older style numerals from the 1800s. Also has government arrow, which has been crossed out. Also stamped D.W.S P (Diplomatic Wireless Service??) Conditions Item is sold as described and as photographed. I post items as soon as possible but not on Mondays. UK and International bidders welcome. Items are posted via Royal Mail.If you require insurance or signed for delivery please ask for it and I will include in a new postage quote. Buyer pays all postage and insurance costs. A receipt of postage will be kept by me. For an idea of worldwide postal costs visit: I charge a modest £1 for packing.