How Old is my Challen Piano?

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

other drug like clomid calculator free propecia prescription Dates and serial numbers when the pianos were manufactured   

18503200
18606100
18709650
188014220
189019480
190026260
191031309
192035814
193043205
194066482
195073043
196087529
197095069
1980103337
199038787
200045972