Good afternoon, Ardy,

Thank you for contacting Mearto with your appraisal inquiry. This is a Robinson Ransbottom Pottery (RRP) mixing bowl that was made in Roseville, Ohio...it isn't from the Roseville Pottery factory. I've included the link to a recent sale of three RRP graduated bowls so you have a sense of the market for these.

Based on the photographs and information provided, and subject to examination, this is:
A Robinson Ransbottom Pottery mixing bowl
Roseville, Ohio, mid 20th Century
white with impressed detailing and cobalt blue banding; underside marked "RRP Co / Roseville Ohio / 305/?"
8 inches tall by 14 inches diameter
CONDITION: not examined in person but appears to be in used condition, commensurate with age.
PROVENANCE: Found it in an abandoned log cabin in Swainsboro Georgia in 1965.
$25-35*
*represents a fair-market value for auction purposes; retail or asking price may vary.
($40) https://www.invaluable.com/auction-lot/robinson-ransbottom-pottery-mixing-bowls-9724aec90d

Please let us know if you have additional items to appraise and thank you for using Mearto.