How many coin have diameter 23mms?
Value Diameter Thickness Mass Composition Edge Obverse Reverse first minting issue withdrawal lapse
text text text text text text text text real text text text
1-1307572-1
10 h 15.5mm 1.7mm 0.6 g 99% aluminium 1% magnesium Plain "ČESKÁ REPUBLIKA", Czech lion , year of minting Value, stylized river 1993 12 May 1993 31 October 2003 31 October 2009
20 h 17mm 1.7mm 0.74 g 99% aluminium 1% magnesium Milled "ČESKÁ REPUBLIKA", Czech lion , year of minting Value, linden leaf 1993 12 May 1993 31 October 2003 31 October 2009
50 h 19mm 1.7mm 0.9 g 99% aluminium 1% magnesium Alternately plain and milled "ČESKÁ REPUBLIKA", Czech lion , year of minting Value 1993 12 May 1993 31 August 2008 31 August 2014
1 Kč 20mm 1.85mm 3.6 g Nickel plated steel Milled "ČESKÁ REPUBLIKA", Czech lion , year of minting Value, St. Wenceslas crown 1993 9 June 1993 Current Current
2 Kč 21.5mm, 11-sided 1.85mm 3.7 g Nickel plated steel Rounded, plain "ČESKÁ REPUBLIKA", Czech lion , year of minting Value, a n Great Moravia button-jewel 1993 9 June 1993 Current Current
5 Kč 23mm 1.85mm 4.8 g Nickel plated steel Plain "ČESKÁ REPUBLIKA", Czech lion , year of minting Value, Charles Bridge , Vltava , linden leaf 1993 9 June 1993 Current Current
table_1307572_1
SELECT COUNT Reverse FROM table WHERE Diameter = 23mm
23mm