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In page Potsdamer Platz:

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Not to be outdone, East Berlin had meanwhile erected a sign of its own. This was up and running by 25 November 1950, less than seven weeks after its western counterpart, albeit for a much shorter time period. (It was demolished on 29 January 1953.[citation needed]) Facing towards West Berlin was the proclamation DER KLUGE BERLINER KAUFT BEI DER H.O. (The Wise Berliner Buys With The HO) Underneath were the words NÄCHSTE VERKAUFSSTELLEN (Next Sales Premises), between two arrows pointing left and right, suggesting that large shopping developments were forthcoming in the immediate vicinity, although these never appeared.