Sorry about the delay Jorgen, I'm out of the UK till beginning of May and only just read the posts. These do look like Armstong units and should have AT.6/7-1096 stamped on the top unit cover if they are solo units. When I get back home I'll check my springs and hopefully they'll be slightly longer ...

I'm looking for a pair of Armstrong rear suspension units for my '56 VH. Condition is immaterial as I only need the springs

Should have AT.6/7-1096 engraved on the damper top unit (these are the solo damper units). Would be happy to supply my sidecar damper springs if you want them!

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