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H.Kolberg i S-ka No 1896 - the year of production 1925
Read more about H.Kolberg and PZO binoculars on the article
 

H.Kolberg i S-ka No 28689 - the year of production 1930
 

H.Kolberg i S-ka No 29363 - the year of production 1931

H.Kolberg i S-ka No 82568 - the year of production August  1939
 This binocular was produced by the second factory, named  H.Kolberg as well.    

H.Kolberg i S-ka No 80692 - the year of production 1938

Recently acquired binocular.
This is next binocular produced by the second factory, named H.Kolberg.
It is very early production number of that Company. 

Read more about H.Kolberg and PZO binoculars on the article
 

PZO (Polskie Zaklady Optyczne) - the year of production 1935

Production number 43884.

PZO (Polskie Zaklady Optyczne) - the year of production 1935
Recently acquired binocular.
The binocular is in a perfect condition. The body covering is complete.
Production number 42064.

TZK 10x 80/ 

Antiaircraft binocular. Production No: S-55168 / Made by PZO

factory in Warsaw, at 20 November 1975. The three TZK binoculars were bought

from the Polish military. They have never been used and are originally packed.

Also included the box two booklets: “Technical description of the TZK” and

“Instruction - Handbook on humidity absorber” - the books are in Polish language.

TZK 10x 80/  Production No: S-55161 / Made by PZO factory in Warsaw, 1975

TZK 10x 80/  Production No: 12069 / Made by PZO factory in Warsaw.

Pocket Microscope PZO - 1970s
This pocket microscope, in our collection, was a present. When Terry was visited PZO,   he was presented with this microscope, by the Deputy Director of the Company.
It is very nicely constructed.
The microscope, in a shape of pen, has a magnification of 16 to 32, continuously adjustable. It is 110 mm (4.37 in) length, and 43 mm (1.69 in) diameter, weight 28 gram (0.98 oz).
The optic is coated.
                                
      Pict 3; Pocket microscope PZO eye lens ; © Anna Vacani
The objective is fitted with a hood  specially shaped for to let in light.

                                
     Pict 4; Pocket microscope PZO objective hood; © Anna Vacani
The picture from microscope is inverted - up side down.
In the middle of the power adjustment the metal is knurled to get a grip.
The microscope is in the carrying case. It can be hanged on the waist belt (Pict 2).
To focus the microscope, place the center of the objects lens right above the specimen and, while the tilting the cylinder forward and backward with your eye on the eyepiece lens,  fix the cylinder and observe at the angle which can give the sharpest image.
In 1830 appeared an advertisement of the pocket microscope “The Botanical Microscope invented by Dr. Withering, which is more portable and convenient  than any other is now manufactured by Mr. Beilby, Optician, Clare Street, Bristol ”
Dr. William Withering was an English botanist, geologist, chemist and physician. He invented pocket microscope for use on his botanical field trips, looking for herbal remedies.
This kind of microscope was popular in the USA. In 1823 the pocket microscope was advertised: “ $4 Imported Pocket Microscope, Graduated from 39 to 56 Power 3 lenses, 5 in long, 5/8 in. in diameter, with dust cup - $4 [..] of the same type of instrument, in 25 power, only $1, [...] These two microscopes are in grate demand by toolmakers, chemists, biologists.”
Today, this kind of microscope is advertised as  convenient in numismatics or a jeweler loupe, as well.

LP 7x50 PZO
The LP 7x50 model was produced, in PZO (Polskie Zaklady Optyczne), in a short period. 
You can read about in the article “Polish binocular LP 7x50 by PZO”.

                            
                Pict; LP 7x50 PZO in our collection; © Anna Vacani

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