I collect many things: used stamps, coins and banknotes circulated, pins,..., but so far I have only ordered and ready to swap collections of used stamps from Spain, euro coins circulated and world coins and banknotes circulated.
About world coins:
I collect coins circulated (is unimportant if they are circulated or uncirculated).
I collect only one coin of each KM-number of Krause catalog (Standard Catalog of World Coins).
About world banknotes:
I collect banknotes circulated (is unimportant if they are circulated or uncirculated).
I collect only one banknote of each P-number of Krause catalog (Standard Catalog of World Paper Money).
My world coins and banknotes circulated list (wanted and doubles) is accessible via the Internet (link is in my signature).
If you want to do a swap, send me a PM. Do not write on this topic, I may not read it.
Germany. Federal Republic (1949-1990) 1 mark 1950, 1954-2001 KM# 110: 1990 D (x1)
Spain. Kingdom Alfonso XIII 1 peseta 1896-1902 KM# 706: 1901 (01 x1 worn)
Spain. Kingdom Juan Carlos I 50 pesetas 1997 Juan de Herrera KM# 985: x1
France. Fourth Republic 10 francs 1950-1959 KM# 915.1 Without mint mark
Portugal. Third Republic 1 escudo 1986-2000 KM# 631
Portugal. Third Republic 25 escudos 1980-1986 KM# 607a 10.8000 g. 28.5 mm
Portugal. Third Republic 100 escudos 1989-2000 KM# 645.1 Edge with 5 milled bands
Spain. Civil War. Republican. Asturias and León 1 peseta 1937 KM# 2
Spain. Kingdom Juan Carlos I 100 pesetas 2001 KM# 1016 Anniversary of the peseta
United States 1 quarter (25 cents) 2001 KM# 321 Vermont