Hello Bob,
Thank you, that is a great help. My wife tells me those marks will matter. I am inclined not to look too closely and just wear the shoes. It sounds like it is rigid enough though.
Thanks Tom
I have been offered a singer 29K hand machine which looks very adaptable and a woderful piece of engineering. I wonder whether this would be suitable 'all rounder' type machine for me to make the occasional pair of shoes. I am not sure the maximum thickness of leather it can sew or thread size it can handle. Thank you for your advice