Alphabetic face values of stamps

Attention!
On 1.07.2016 Belarusian ruble was denominated by 4 points:
10000 old rub. = 1,00 new rub.
100 old rub. = 0,01 new rub. = 1 kopeck
 
 
“A”(0,36 rub.)is equal to the tariff of a letter up to 20 gram within Belarus.
 
“B”(0,36 rub.)is equal to the tariff of a postcard within Belarus.
 
“N”(0,93rub.)is equal to the surface tariff of a postcard abroad.
 
“M”(1,17rub.)is equal to the air-mail tariff of a postcard abroad.
 
“H”(1,26rub.)is equal to the surface tariff of a letter up to 20 gram abroad.
 
“P”(1,44rub.)is equal to the air-mail tariff of a letter up to 20 gram abroad.
 
“C”(1,44rub.)=“P”.