my china

hi i have at least 100 pieces of o.p.co. syracuse china i believe the year is from 1903 to 1908 and im hoping i can get an appraisal for it to know what its worth ive tried to find the design but couldnt the numbers on the are all just the number and some with the circle around it i hope u can give me a price thank u im going to send a pic of the back and front hope that will be enough if u need more pictures please email me