Manufacturer:	Gilson
Country of Manufacture:	U.S.A.
Type:	Atlas Square Calculator. Circular Slide Rule. (Type 1)
Number:
Date of Manufacture:	1920's
Scales: (Front)	C, 30 spiral C
Scales: (Back)	None
Number of Scales:	2
Gauge Points:
Slide Rule made from:	Aluminium
Cursor made from:	Plastic
Cursor Lines:	2 cursors on front, both with 1 line
Overall Length of Rule:	9 3/4" diameter
Length of Scales:
Width:
Depth:	0.1 cm
Weight:
Acquired from:	Edwin Chamberlain
Date:	Mar 2003
Condition:	Good
Accessories:	No case
Comments: