Hi Malcolm,

I haven't heard of anyone that can decipher the ID plate as the records were thrown out a long time ago.

The 19 Bon Mow looks like it's a fifties model, some info. here https://www.outdoorking-forum.com.au/forum/ubbthreads.php/topics/65009/model-19-history-record-c1953.html

If you had the original engine you could get the year of manufacture from the stamping on the flywheel.

Cheers
Max..

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