Identify hallmark, possibly Italian 18th century bowl

[anfisa]

Twin-handled bowl with St Luke's winged ox to centre. I assume it is Italian in origin as the name is spelt "Luca". Looked everywhere trying to identify the marks. I know Spain uses a pentagram, but this seems different in shape. Any help would be greatly appreciated!
https://drive.google.com/file/d/16W_3Rt ... drive_link
https://drive.google.com/file/d/1y_fZr- ... drive_link
https://drive.google.com/file/d/126ABwC ... drive_link
https://drive.google.com/file/d/13ILGdb ... drive_link
https://drive.google.com/file/d/1C1AZ55 ... sp=sharing

[dognose]

Hi,

Welcome to the Forum.

Please embed your images as very few members will click on such links.

https://postimages.org (choose 'Share', then copy the 'Hotlink for forums' code) is recommended. Do not use Photobucket or Dropbox.

Trev.

[anfisa]