dittrich, A number of people do not feel that top row is really a row; they feel this is an #87. If you think you see another row, send it in for a certification. Without a cert, there will always be a question in the mind of anyone looking at the stamp. Don
The stamp is a Scott 87 E-grill. In fact, the "half ridges" at top rule out the possibility of Z-grill (which will only exhibit "half ridges" in the vertical direction.) The vertical (not horizontal) orientation of the grill points also rules out Z-grill, as others have pointed out. Also the grill is very well-struck and 14x17, not 14x18. In this case, it's three strikes and you're out...
The points are pyramidal... not ridged... which entirely rules out being a Z grill... horizontal ridges *must* exist for the stamp to qualify as a Z...
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