NEW ELTHAM, LONDON, S.E.9 
363 
Quote Stanley’s ‘A’ Catalogue 
MISCELLANEOUS 
READING GLASSES AND MAGNIFIERS 
A8980-A898I 
The “ Plasta ” Hand Readers contain aspherical lenses designed 
not only to give a good correction for distortion and field curvature 
for one working distance, but have a performance which is less sensitive 
to change of working distance or to variation in the relative position of 
the eyes of the user. 
A8980 The “ Plasta Major ” Aspherical Hand Reader, Lens—4 in. x 3 in. Power 
—6 dioptres, Weight—7 oz., in cream diakon frame. 
A898I The “ Plasta Minor ” Aspherical Hand Reader, Lens—3£ x 1\ in. Power— 
6-5 doptres, Weight—3-75 oz. in cream diakon frame. 
A8982 The “ Plasta Bantam ” Magnifier, similar to above but with Biconvex Lens, 
2f in. X l| in., Power—5 dioptres, Weight—1-5 oz. 
“ Plasta ” Aspherical Stand 
Readers, are designed primarily to 
give freedom from distortion, to 
gether with a flat field. The small 
field curvature provides comfortable 
binocular vision over a wide field, 
without trace of fatigue when used 
continuously for long periods. 
A8984-A8985 
A8984 “ Plasta ” Large Aspherical Stand Reader, Lens—4 in. x 3 in. Power— 
8 dioptres, Weight—8-5 oz. in cream diakon mount. 
A8985 “ Plasta ” Small Aspherical Stand Reader, Lens—2f in. x 2J in., Power— 
11-5 dioptres, Weight—4 oz., in cream diakon mount. 
A8987 “ Plasta Monarch ” Magnifier, Lens—6J in. x 4| in., Power—4-5 dioptres. 
NOTE :—Leaflets with full range of “ Plasta ” Readers, etc., will gladly be sent on application.