I have a plate, holland johnson brothers pattern. I wanted to know where i can go to find out the price and the age.
You have one of the Johnson Bros. flow blue "Holland" pattern plates? This pattern goes back to circa 1900-1905 and should be stamped "Holland - Crown Mark - Johnson Bros - England".
There's a wealth of info on this pattern on the internet just by Googling Johnson Bros. Flow Blue Holland pattern.
Replacements.com sells a dinner plate for $99.95, bread & butter plate for 37.99, 10" serving platter for $139.95. If you can still find flow blue in antique shops, pricing is probably all over the map - or at least it was back in my antiquing days. Flow blue wasn't my field of interest, but it was for a friend who amassed an amazing collection.