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DerekM

Series 1 frame numbers

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So I picked up a S1 with an odd frame number li150 802***. All the normal listings of s1 and s2 frame numbers show that s2s started production in mid to late 1959 with 800,000 as the starting point. Which would point someone to think this is a s2 frame done up as an s1, but the horncast and horn mounts look stock.

I know, S1s were produced until October 1959, so the factory must have been making S1s and s2 frames at the same time. I’ve heard there is fuzzyness with numbers during these periods, but has anyone else seen this, or can help corroborate this?

The igm numbers didn’t start until mid 1960 so, the frame does not have any igm numbers on it. 

Thanks!

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Here's what's listed on the BLA http://www.britishlambrettaarchive.co.uk/frame-numbers-pt-2.html

Like you're saying, the common thought is there was some number cross over between S1 and S2. I believe there are some physical differences between S1 and S2 in regards to how the legshield mounts but I don't have a S1 to compare.

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Just to close the loop on this, vittorio’s s1 book also notes that S1s has 800 series frame numbers.... “the leap from around 650,000 to 800,000 remains, however, a mystery’

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My old series 1 was in the 800 range.  A few others exist in the states too.  There is a thread somewhere about it.  May have been on old site .  

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