Porcelain maker marks help

[villagenut]

Found these three shards with partial marks. The one on the left is most likely a Meakin piece, as several examples have been dug here. The other two have me stumped. Any porcelain guys and gals out there? Maker and age if possible.

 

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[sutphin]

NOT SURE NUT I WILL HAVE TO LOOK UP IN MY POTTERY BOOK IF I CAN FIND IT . STILL NEAT SHERDS THOUGH .

 

[villagenut]

Just solved the center one as I found another shard from same site. It is Powell and Bishop 1867-1878. Still lookin for the porcelain ID on the right.