Title

Name

Surface weathering

Total

X²

Correction X²

P

Weathering free

Weathering

Ornamentation

A

11

9

20

5.747

5.747

0.056*

B

0

6

6

C

13

15

28

Type of glass

Lead barium

12

24

36

5.4

4.134

0.020**

High potassium

12

6

18

Color

Light green

2

1

3

6.287

6.287

0.507

Light blue

8

12

20

Dark green

3

4

7

Dark blue

2

0

2

The purple

2

2

4

Green

1

0

1

Blue-green

6

9

15

Black

0

2

2