Thanks Glen - two FPL-53 lenses would explain it. I just can't see where TS definitively state that. They use element not elements in the following description:
Apochromatic doublet lens with FPL53 element by Ohara (Japan)
There's little doubt they come from the same factory as this 50mm Sharpstar has the TS insignia on the dew shield:
https://www.aliexpress.com/item/-/32...4e133c00HNwr2o
The Sharpstar 60ED does not come with a case, just the foam insert, but I don't think that's worth the price difference to the SV.