Thank you for your time. This item really had me flummoxed as to value. Allison

I drew the pic and scanned to my computer. I am not sure why it didn't attach. I will try again. Allison PS - I will certainly clean it after your good suggestion.

Tried. Got some of the stain off, but when I say crown it is only my impression of the image. All that is clear is an open cross. I am still viewing the sites you forwarded and it is slow going. I...

Neglected to thank you for the additional info. A couple of great sites. Allison

The circle on the bottom is only 3/4 inch with the centre only 3/8 inch. I have made a (pore) drawing which I will attach. Allison

Thank you for your time. I thought the same thing but appreciated another more expert opinion. Allison

I will follow up. Thank you for all of your work. Allison

So sorry to be so long getting back to you. Trying different camera settings. Still little luck. Mark is only on one cup bottom. In total only 1/4 inch long with a stain on most of it. Under magnifier...

Thanks for the input. Allison

I will try but had little luck last time. Maybe with more varied lighting? I will also try and draw and scan it. May take a day or so as I am away. Thanks Allison