Copper and zinc plates, fitted with terminals and a glass jar of size 15x10 cm approx

Teak wood with hinged lid, Slides are held in numbered slots and an index is provided for listing of slides in side the lid, available in the capacity of 25 ,50 and 100 slides.

To illustrate wave motion

This set comprise a 10gm wire hanger with nine slotted masses each of 10 gm giving a total mass of 100gm the design of the slots ensures that the masses may be easily removed and replaced. The weight of the hanger & the masses had been adjusted to with in +/-5%

Slotted weight made of brass, 10gm, 20gm, 50gm 100gm and 200gm.

Wood resonance box with two-meter rules, one meter sub-divided in millimeter. One each brass & steel wire respectively, attached to fixed ridge and tensioned by fine adjustment pegs. Two moveable bridges, pulleys and fixed screw to enable a third wire to be fixed for tensioning by masses

One end flat and other and spoon from polished Length width
a) 125x 18mm
b) 150x18mm
c) 280x18mm

Telescope with achromatic object glass focal length 178mm 25 mm diameter 8X Ramsdan eye piece with hair line graticule, Helical focusing, fine motion, tangent screw provided for fine adjustments of the telescope collimater achromatic object glass 178mm focal length and 25 mm dia meter , adjustable slit at the other end of the collimeter tube . Helical focusing. Prism table fitted with three springs loaded leveling screws, base integral with circular scale graduated in degrees from 0 to 360o. The position of the telescope is readable with the help of attached vernier scale reading to 6 minutes of an arc. Complete with prism clamp and grating holder.

Student grade with engine divided graduations. Legs and screw made of stainless steel. Spherometer; double disc, college grade with engine divided graduation legs and screw made of stainless steel.
a) Screw pitch 1mm reading to 1/100mm
b) Screw pitch 0.5 mm reading to 1/200

For use as a null detector for potentiometer set up and ridges. Housed in Bakelite case with lamp and scale arrangement taut band type movement Movement sufficiently protected against shocks. Alcomax magnet properly aged for high stability clamp and free arrangement for transportation. Scale 150mm long, easy replacement for lamp. Operated at mains 220 volts a. c. or 6 volts D.C band switch for 5 shunt power 1,1/10,1/100 and short circuit. Dimension over all 220x 225x132mm approx.
Resistance----- 125 ohms Period 2 sec
Damping resistance----- 1000 ohms

For demonstrating the principle that the pressure increase with depth Made of iron sheet, having three orifices of equal diameter at different heights

With screwed wick holder, glass top cover capacity
a) 60ml
b) 125ml

Made of aluminum/ brass die pressed sheet, with woven wick in screw caped metal holder, capacity
a) 60ml
b) 125ml

Fitted with inlet and outlet tubes, water gauge made of stout tine sheet. Capacity
a) 1000ml
b) 2000ml

Consists of a copper, vessel 18x 11.5 cm (height X diameter) heaving sliding tube of brass with ebonite handle the material in the tube can be discharged instantly without any loss of heat, by simply tubing the handle. With out thermometer

Smith type, start, stop and fly black action, 100mm projected dial is machine printed. Entire assembly housed in metal case nicely finished. Reading 60 seconds and 60 minutes

Aluminum tripod stand with leveling screws is fitted with Bakelite round plate. A brass cup holds the compass box which is fitted with anti –parallax mirror and jeweled needle. The entire model can move around its axis.

Achromatic object glass, focal length 178mm and 25mm clear aperture 8 X remsdan eye pieces cross line graticule focusing by rack and pinion. Ranges from 1000 mm to infinity, carriage for telescopes with adjustable ring to stop abrupt falling fitted with screws for precise vertical and horizontal positioning scale holder provided stand 25mm diameter steel pillar 450mm long. Fitted on a heavy cast iron base with three leveling screws

Telescope fitted on a universal clamp for horizontal and vertical movements, mounted on a steel pillar 12.5mm diameter and 504mm long fitted on a heavy tripod base, rack and pinion focusing, achromatic object glass focal length 178mm, 8X ramsden eye piece, cross line graticule . Scale for use with telescope. Made of milky white plastic sheet, fitted in frame, length 50cm, divisions numbered 25-0-25 and 0-50cm inverted figures special clamp to fit in stands of the telescopes.

Thick flat steel wire, chrome plated have thumb sliding device for opening and closing, with polished wooden handle.

Made of wood with steel spring for closing jaws to take tubes up to 19 mm diameter Length of holder 185mm

Made of thick aluminum sheet with three tiers anodized
a) Available in 24 holes for 18mm diameter tube
b) Available in 24 holes for 25mm diameter tube
c) Available in 36 holes for 18mm diameter tube
d) Available in 36 holes for 25mm diameter tube
e) Available in 48 holes for 18mm diameter tube
f) Available in 48 holes for 25mm diameter tube

Made of polythene high density, the base size 210x82mm give stability Can accept two tubes of 25mm diameter and four tubes of 16mm diameter Six vertical pegs at the rear of the base ensure quick drying of the tubes.

Made of seasoned hard wood, polished, single row with pegs holes 18mm diameter and 25 mm hole at each end.
a) For 6 pegs and holes
b) For 12 pegs and holes