What is Czechoslovak koruna?
The '''Czechoslovak koruna''' (in [[Czech language|Czech]] and [[Slovak language|Slovak]]: ''koruna československá'', at times ''koruna česko-slovenská'' was the [[currency]] of [[Czechoslovakia]] from 10 April 1919 to 14 March 1939, and from 1 November 1945 to 7 February 1993. {{Infobox currency|currency_name_in_local=''koruna československá'' {{small|{{nobold|([[Czech language|Czech]] & [[Slovak language|Slovak]])}}}}|image_1=One Czechoslovak Crown.png|image_title_1=One Crown of the [[First Czechoslovak Republic]]|image_2=|image_title_2=|iso_code=CSK|iso_number=200|using_countries=[[Czechoslovakia]], [[Czech Republic]], [[Slovak Republic]]|inflation_rate=57.9%|inflation_source_date=''World Bank'', 1991<ref name=WorldBank>[http://www-wds.worldbank.org/servlet/WDSContentServer/WDSP/IB/1993/05/01/000009265_3961004134453/Rendered/PDF/multi0page.pdf Inflation in Czechoslovakia 1985–91, World Bank]</ref>|subunit_ratio_1=1/100|subunit_name_1={{native name|cs|haléř}}<br/>{{native name|sk|halier}}|symbol=Kčs|symbol_subunit_1=|plural_slavic=Y|frequently_used_coins=10, 20, 50 h; 1, 2, 5 Kčs|rarely_used_coins=5, 25 h, 3, 10 Kčs|frequently_used_banknotes=10, 20, 50, 100 Kčs|rarely_used_banknotes=500, 1000 Kčs|issuing_authority=State Bank of Czechoslovakia|printer=Státní tiskárna cenin<br/>(State Securities Printer, [[Prague]])|printer_website={{URL|www.stc.cz}}|mint=Mincovňa Kremnica<br/>([[Kremnica]] Mint)|mint_website={{URL|www.mint.sk}}|obsolete_notice=7 February 1993}} {{CSS image crop|Image=CZE-1-Republika Ceskoslovenska-10 Korun (1919, Provisional issue).jpg|bSize=245|cWidth=240|cHeight=135|oTop=2|oLeft=1|Description=Republic of Czechoslovakia 10 Korun note (1919, provisional and first issue).}} The (last) [[ISO 4217]] code and the local abbreviations for the koruna were ''CSK'' and ''Kčs''. One koruna equalled 100 ''haléřů'' (Czech, [[Grammatical number|singular]]: ''haléř'') or ''halierov'' (Slovak, singular: ''halier''). In both languages, the abbreviation ''h'' was used. The abbreviation was placed behind the nume