| Primary Embossing |
Hieght (inches) |
Width (inches) |
Hole Size | Ridge type | Firing Rest | Mark Type | Top | Ridge | Wire Groove | Bottom | Color | Notes | Ref. # |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| No Marking | 4 | 3-1/2 | 7/8 | Round | Sand |
|
|
|
|
|
brown | No skirt |
|
| Porcelain Products, Inc. | 4 | 2-7/8 | 5/8 | Arc | Skirt | INC |
|
(PP in a rectangle) 504 |
|
|
brown |
|
|
| Porcelain Products, Inc. | 5-1/2 | 3-1/4 | 1 | Arc | Skirt | INC |
|
(PP in a rectangle) 506 |
|
|
brown |
|
|
| I.T.E. Imperial | 7-1/8 | 3-5/8 | 1-1/16 | Groove | Skirt | INC |
|
|
I-T-E(encircled) |
|
mottled gray |
|
|