Hello Dave
As I look at my list of Parry marked guns all the Quality 2s are in the first 100 serial numbers with no Quality 1s. Ill just give you a break donw it will be easer.

Parry marked guns
0-100 6 guns 5 Quality 2s and one I dont know
100-200 1 gun Quality 1
200-300 2 guns 1 Quality 1 and one I dont know
300-400 no guns listed
400-500 6 guns 4 Quality 1 and 2 I dont know
500-515 2 guns Both Quality 1

Wilkes-Barre marked guns
500-600 1 gun This is my high grade gun
600-700 2 guns Both Quality 1s
700-800 1 gun Quality 1
800-1000 No guns
1000-1100 4 guns One Quality 1 and 3 I dont know
1100-1200 2 guns One Quality 2 and one Quality 1
1200-1300 1 gun I dont know

Dave I hope that this helps you. I think the W-B kept the numbers going, but there are some gaps that look funny. I do know that the W-B hammer guns and the hammerless were not numbered together. As there is one hammer gun and one hammerless numbered with the same number.
Bob



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