Insect collecting specimen tools triangle case triangle can triangle paper retro vintage

?? Triangular Case
This is a case for holding triangular paper.
Butterflies, dragonflies, etc. that you have collected are placed in triangular paper and then put into this triangular case for use.
It is made of metal, likely tin, but this is not certain.
It can be attached to belts, etc.

Size
Top width: approx. 16cm
Bottom width: approx. 6cm
Height: approx. 13cm
Diagonal: approx. 16.5cm
Belt loop hole: approx. 3 x 0.4cm
Weight: 225g

?? Triangular Paper
Paper for sandwiching butterflies.

Size
Large: 10.5 x 10.5 x 15cm
Medium: 9 x 9 x 13cm
Small: 6.5 x 6.5 x 9cm

Quantity
Large: 3 bundles + a few loose sheets
Medium: 5 bundles
Small: 3 bundles
*1 bundle contains about 5-10 sheets
*Sizes and quantities are not precisely counted.
There may be errors.

● Pattern Paper?
A few sheets

There is deterioration due to age. Please check the images.
We would appreciate it if you could purchase this item with the understanding that it has been stored by an amateur.

Insect collecting supplies
Specimen making supplies