Electronic Match Output

Number:24a

Maker:Blundell P2361 - Westec Electronics
PHOTO

Type:Electronic

Length:25 cm

Circular:

Special Scales in Well:N

Special Scales on Stock:Y

Gauge Marks:N

Scales Front:(Lr)H K (fx)2π A = (Cr)B, S/Cos T/Cot (Lx or Cx) CI (XL or fr) C = D (xc), L, Ln, ST

Scales Back:

Info: ISRM
This is the only slide rule, besides those made by Pickett, to have an 'Ln' scale