Post office Box Plug Type : With 12mm thick rectangular blocks,1 to 5000 ohms total 11, 110 ohms, accuracy 0.1% precision quality, for schools and junior college.
3 ratio coils
4 ratio coils 

Glass Prism :  Equilateral or right angled, bubble free, non-optically worked, with polished faces, Ist quality
a)Size 37mm
b)Size 50mm 

Pulleys :  37mm dia aluminium pulleys accurately centred in brass frame with hook.
a) Single one hook
b) Single two hooks
c) Double long or Parallel
d) Triple long or parallel

Resistance Box Pulg Type : With 15mm thick rectangular gun metal heavy blocks and spray painted teak wood box. Coils are connected with double nut system, standard quality, college grade. Accuracy 0.05% to 0.1% 

Available Range           
A. .1 to 1   
B. .1 to 5   
C. .1 to 10   
D. .1 to 50   
E. .1 to 100   
F. .1 to 500   
G. 1 to 10   
H. 1 to 50    
I. 1 to 100   
J. 1 to 500   
K. 1 to 1000  
L. 1 to 5000  
M. 1 to 10000  

These non-corrosive, moulded Retort stands provide excellent replacement for the metal ones. Even the metallic rod has a polypropyelene covering making it non corrosive. The rod measuring 12.5mm x 750mm can be screwed in to the heavy base giving way to a perfectly stable retort stand.

Sizes :

• 225x150mm Side Hole
• 300x200mm Center Hole
• 300x200mm Side Hole

Rheostats :  5.6cm dia tube wound with heavy oxidised eureka wire and mounted on duco painted metal feet provided with laminated brush contacts of phosphor bronze strips. Brass C.P. guide rods and lock type terminals.

Ring and Ball 1" dia all brass best quality  

LYZER SLIDE CABINETS : For storing slides individually in vertical position 12 wood grooves. Framework made of 15mm plywood with top and sides covered with sunmica laminated sheet. Door provided with best quality lock is strongly hinged on brass hinges and is lined with foam to prevent entry of dust. Base finished in enamel paint drawers made of teak wood framework with plywood bottom are fitted with index card frame. Puller knob and restraining level. Inside bottom of drawers is covered with velvet sheet. Drawers move on steel angle.Printed index cards placed in the extra drawers provided in the base and fitted with phosphor bronze clip to keep index and intact. Cabinet completely dust proof. Finished in natural nitrocellulose lacquer. All fitting are of brass, chromium plated.
For storing 3" x 1" Glass Slides (in vertical position)
a.Cabinet for 500 slides consisting of 5 drawers each for 100 slides, arranged in single row.
b.Cabinet for 1000 slides consisting of 10 drawers each for 100 slides, arranged in single row.
c.Cabinet for 2000 slides consisting of 10 drawers each for 200 slides, arranged in single row.
d.Cabinet for 5000 slides consisting of 25 drawers each for 200 slides, arranged in two vertical rows, each row having separate door and locking arrangement. Built on 6" high legged stand.
e.Cabinet for 10000 slides consisting of 50 drawers each for 200 slides, arranged in two vertical rows, each row having separate door and locking arrangement. Built on 6" high legged stand. 
For storing 3"x1" Glass Slides (in Horizontal position)
aa.Cabinet for 500 slides consisting of 25 Nos. alluminium anodised trays each for 20 slides, arranged in single row provided with disappearing type door.

bb.Cabinet for 1000 slides consisting of 50 Nos. alluminium anodised trays each for 20 slides,arranged in two rows cabinet provided with brass hinged single door with lock.
cc.Cabinet for 2000 slides consisting of 100 Nos. alluminium anodised trays each for 20 slides, arranged in two rows. Cabinet provided with brass hinged single door with lock.
For storing 2"x2" Transparency slides in vertical position.
aaa.Cabinet for 525 slides consisting of 5 drawers each for 105 slides, arranged in single row.
bbb.Cabinet for 1050 slides consisting of 6 drawers each for 175 slides, arranged in single row. 

Slotted Weights : Iron OR Brass C.P., set of 5 with hanger
a)5gm x 5      total 25gm
b)10gm x 5    total 50gm
c)20gm x 5    total 100gm
d)50gm x 5    total 250gm
e)100gm x 5  total 500gm