Although they at first glance may seem to be exactly identical - at least compared to the similar glyphs in the other four days - they are not so.

I think I can discern a gradual decrease in width, especially so in Saturday. And the 'Clara-knife' in Saturday definitely is attatched somewhat higher up. Perhaps this means that with increasing age you get thinner, but at the same time attain higher status by way of having more experience to rely on?

On the astronomical plane Saturn indeed is not so strong, being placed high up from the sun.