a copper coin with this writing on the front Regno Lombardo Veneto M with a image of temple or Mosk with drapes over a crown. The back reads 5 centesimi 1850.
Almost certainly is that coin. For history on the vice-royalty Lombardo Veneto (Lombardy-Venetia), which was awarded to Austria after the defeat of Napoleonic France, you can look on the following site: http://www.dolomiti.org/dengl/Cortina/csto/mfbelli/cap13.html
Emperor Franz Josef of Austria-Hungary (ruled 1848-1916) was the last King of Lombardy-Venetia (1848-66).The 1850M 5 Centesimi was struck during his reign.The 'M' mintmark is that of the Milan Mint. Aidan.