Locke porcelain signals
Will have company info added soon (hopefully).

    Reported styles: U-256A, U-282, U-286, U-287, U-287A,        U-291, U-291A, U-292, U-293, U-294, U-294A, U-295A, U-296, U-297, U-297A

   Reported colors: brown, chocolate brown, white, gray,
light blue, cobalt, caramel, mahogany, pumpkin, yellow, green, blue
These first seven are U-286s. All are incised on the skirt "LOCKE" over "44" over "USA"
U-287A
U-287
Incised on skirt "LOCKE" Incised on skirt "LOCKE" over "23587"
These 10 signals are all U-292s. The first 4 being incised on skirt "LOCKE" over "44" over "USA".
The next two U-292s are incised on skirt "LOCKE" over "44" over production line letter designations.
These two U-292s are incised on skirt simply "LOCKE" over "44"
Lastly these two U-292s are incised on the dome simply "LOCKE" 
Here are four U-297s incised on skirt "LOCKE" over "44".
Four U-297As nearly all marked "LOCKE" over "44" over "USA"