Gearbox info needed please

Hi, The bike came as a box of bits, the frame we think is a 31 model 16 and engine a 34 model 18. I very much doubt the gearbox is the orginal one.

Previously michael_sullivan wrote:

David: It might help if you gave us the year and model of the bike as well as a photo of the complete bike.

Mike

Previously david_sutton wrote:

I have a 30's Norton which came as a box of bits. I could do with some info on the what type of box it came with and what problems it could have, Is it hand or foot change and what year etc any info would be great, Thanks Dave

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Can anyone say what year it is by the stamped numbers?