How Old is my Challen Piano?

Since 1986, Challen pianos have been assembled in western Malaysia by Musical Products Sdn. Bhd, the factory division of  Vienna Music Sdn. Bhd.

Dates and serial numbers when the pianos were manufactured   

1850 3200
1860 6100
1870 9650
1880 14220
1890 19480
1900 26260
1910 31309
1920 35814
1930 43205
1940 66482
1950 73043
1960 87529
1970 95069
1980 103337
1990 38787
2000 45972