Hasselblad Ektar lenses... 80, 135, ...254mm?

[MMfoto]

I have never seen any 55 or 254 for the 1000f/1600f in any auction sites.
My 80mm is a Heliar, I checked when I serviced it. I found also mixed information ablut this lens whenever is Tessar or Heliar.

Would you be willing to weigh your 80/2.8 and/or post a photo or two?

I've looked at photos of the hundred or so 80mm Ektar's I can find online, and I can't find any obvious visual differences between them, apart from the prototype/pilot series.