The pencil marks are just shop or seller stock info - don't think it's 101, more likely it's " 10/- " for ten shillings, no pence ( in old GB money )
Ipcress, now that I look at it I think you are right, it is a "10/" and I had no idea that would have been for ten shillings, no pence in old GB money. Thanks for that information as I would have been clueless to that fact.
That's great news that Ben at the museum has looked at the pottery. I would never have guessed Dudson, I looked around on the internet after reading this and haven't found any like the ones I have made by Dudson yet but I am still looking. Let's wait and see what the Dudson museum has to say as I'm sure they would know if they made it.
Thanks!
Kevin