Czechoslovakia.
Which one? Without knowing which one and the condition, it really isn't possible to give you a decent answer. Most aren't worth much - about .20
A stamp with "LAR" on it comes from the country of Liberia. The abbreviation "LAR" represents the currency of Liberia, which is the Liberian dollar (LRD). This is commonly used in philatelic contexts to indicate the country of origin for the stamp.
France or one of its territories. Republic of France is what the RF stands for.
For which country?
Spains
Česka Republicka is how you say it. The previous answer, "ceskoslovensko", actually means "czechoslovakian".
As of 2022, Canada does not typically stamp passports upon entry into the country.
No, the United States does not typically stamp passports upon exit from the country.
There isn't any stamp that is called a penny purple. You need to describe the stamp - include country and if you can date and what is on the stamp.
"Can you confirm if the visa on my passport stamp allows me to enter the country?"
No, Canada does not stamp United States passports upon entry into the country.
United Kingdom.