▁the ▁object . ▁ ▁The ▁term ▁false ▁bottom ▁can ▁also ▁refer ▁to ▁the ▁deep ▁scatter ing ▁layer ▁in ▁the ▁ocean , ▁a ▁phenomen on ▁where ▁a ▁layer ▁of ▁marine ▁organ isms ▁deep ▁in ▁the ▁ocean ▁can ▁be ▁mistaken ▁by ▁son ar ▁for ▁the ▁se ab ed . ▁ ▁See ▁also ▁Con ce al ment ▁device ▁Dra wer ▁( f urn iture ) ▁ ▁References ▁ ▁Category : C ab in ets ▁( f urn iture ) ▁Category : Sec re cy <0x0A> </s> ▁Se h nde ▁is ▁a ▁town ▁in ▁Lower ▁Sax ony , ▁Germany . ▁It ▁is ▁located ▁approximately ▁ 1 5 ▁kilometres ▁sout heast ▁of ▁Han over . ▁ ▁History ▁Se h nde ▁was ▁formed ▁in ▁ 1 9 7 4 ▁by ▁combining ▁fifteen ▁autonom ous ▁villages ▁which ▁belonged ▁to ▁three ▁different ▁districts : ▁Bil m , ▁Bol z um , ▁Dol gen , ▁E vern , ▁Gre ten berg , ▁Ha imar , ▁Hö ver , ▁Il ten , ▁Klein ▁Lob ke , ▁M üll ingen , ▁R eth mar , ▁Se h nde , ▁Wass el , ▁We h ming en , ▁and ▁Wir r ingen . ▁Se h nde ▁received ▁its ▁town ▁char ter ▁in ▁ 1 9 9 7 . ▁ ▁The ▁whole ▁area ▁was ▁agricult ural ▁for ▁centuries , ▁until ▁large ▁salt ▁and ▁pot ash ▁depos its ▁were ▁ ▁discovered ▁at ▁the ▁end ▁of ▁the ▁ 1 9 th ▁century . ▁Several ▁pot ash ▁mines ▁were ▁d ug , ▁the ▁first ▁at ▁Gustav sh all ▁in