May 4, 2019 xobg79wtx

Potassium nitrate

May 4, 2019 xobg79wtx

Rocket candy

May 3, 2019 xobg79wtx

Sucrose crystals

May 2, 2019May 2, 2019 xobg79wtx

Difference between one swedish crown coin (2002)(left) and a two swedish crown coin (2016)(right)

May 2, 2019May 2, 2019 xobg79wtx

Difference between one swedish crown coin (2002)(right) and a two swedish crown coin (2016)(left)

April 28, 2019 xobg79wtx

The “A” on a swedish crown