Manufacturer:	Dring and Fage
Country of Manufacture:	England
Type:	Proof Rule
Number:
Date of Manufacture:	1808-1844
Scales: (Front)	CON, IM, EX, PR [CB, A] PR, EX, IM, CON, ?, EX, IM
Scales: (Back)	CON, IM, EX, WATER [?, D] ?, EX, IM, CON
Number of Scales:	23
Gauge Points:
Slide Rule made from:	Ivory and Boxwood
Cursor made from:
Cursor Lines:
Overall Length of Rule:	26.1 cm + 0.8 cm slide ext
Length of Scales:	25.0 cm
Width:	4.0 cm
Depth:	0.5 cm
Weight:	76 gms
Acquired from:	Steve Jones
Date:	Jan 2002
Condition:	Good
Accessories:	None
Comments: